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a, |-37| + (-|15|) = 37 - 15 = 12
b, (-|-32|) +|5| = -32 + 5 = -27
c, (-|-22|) + (-|16|) = -22 - 16 = -38
d, (-23) + 13 + (-17) + 57 = 30
e, 14 + 6 + (-9) + (-14) = -3
g, (-123) +|-13| + (-7) = -123 + 13 + (-7) = -117
h, |0| + |45| + (-|-455|) + |-796| = 0 + 45 - 455 + 796 = 386
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các bn lm đến đâu cx dc miễn là lm hộ mk cái ạ, ai đang lm vào nhắn tin vs mk để mk bít nha
a; \(-\dfrac{8}{3}+\dfrac{7}{5}-\dfrac{71}{15}< x< -\dfrac{13}{7}+\dfrac{19}{14}-\dfrac{7}{2}\)
-\(\dfrac{19}{15}\) - \(\dfrac{71}{15}\) < \(x\) < -\(\dfrac{1}{2}\) - \(\dfrac{7}{2}\)
-6 < \(x\) < -4
vì \(x\) \(\in\) Z nên \(x\) = -5
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a) 1-5+7-8+4-1+5-7+8
=(1-1) - (-5+5) -(7-7) -(-8+8) +4
=0
b)=-39+9
=-30
c)=(20-20)-(-4+4)-(8-8)-17+15
=-2
d)= (13-13)-(-98+98)-(91-91)-75
=-75
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a) \(\left(-23\right)+13\left(-17\right)+57\)
\(=\left(-23\right)+\left(-221\right)+57\)
\(=-23-221+57\)
\(=-\left(23+221\right)+57\)
\(=-244+57\)
\(=-\left(244-57\right)\)
\(=-187\)
b) \(\left(-26\right)+\left(-6\right)+\left(-75\right)+\left(-50\right)\)
\(=-26-6-75-50\)
\(=-\left(26+6\right)-75-50\)
\(=-32-75-50\)
\(=-\left(32+75\right)-50\)
\(=-107-50\)
\(=-\left(107+50\right)\)
\(=-157\)
c) \(14+6+\left(-9\right)+\left(-14\right)\)
\(=14+6-9-14\)
\(=20-9-14\)
\(=11-14\)
\(=-3\)
d) \(\left(-123\right)+\left|13\right|+\left(-7\right)\)
\(=-123+13-7\)
\(=-\left(123-13\right)-7\)
\(=-110-7\)
\(=-\left(110+7\right)\)
\(=-117\)
e) \(\left|0\right|+\left|45\right|+\left(-\left|-455\right|\right)+\left|-796\right|\)
\(=0+45+\left(-455\right)-796\)
\(=45-455-796\)
\(=-410-796\)
\(=-\left(410+796\right)\)
\(=-1206\)
f) \(-\left|-33\right|+\left(-12\right)+18+\left|45-40\right|-57\)
\(=-33-12+18+\left|5\right|-57\)
\(=-\left(33+12\right)+18+5-57\)
\(=-45+18+5-57\)
\(=-\left(45-18\right)+5-57\)
\(=-27+5-57\)
\(=-\left(27-5\right)-57\)
\(=-22-57\)
\(=-\left(22+57\right)\)
\(=-79\)
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1. -x+20 = -(-15)-8+13
=> -x=15-8+13-20
=> -x=0
=> x=0
2. -(-10)+x=-13+(-9)+(-6)
=> 10+x=-13-9-6
=> x = -13-9-6-10
=> x = -38
3. 8-(-12)+10=-(-14)-x
=> 8+12+10=14-x
=> x = 14-8-12-10
=> x = -16
4. -(+12)+(-x)-(-3)=5-(-7)
=> -12-x+3=5+7
=> -x=5+7+12-3
=> -x=21
=> x=-21
5. 14-x+(-10)=-(-9)+(+15)
=> 14-x-10=9+15
=> -x=9+15-14+10
=> -x=20
=> x=-20
6. 12-(-17)+(-3)=-5+x
=> 12+17-3+5=x
=> x=31
7. x-(-19)-(+32)=14-(+16)
=> x+19-32=14-16
=> x=14-16+32-19
=> x=11
8. x-|-15|-|7|=-(-9)+|-5|
=> x-15-7=9+5
=> x=9+5+7+15
=> x=36
9. 15-x+17=13-(-21)
=> 15-x+17=13+21
=> -x=13+21-15-17
=> -x=2
=> x=-2
10. -|-5|-(-x)+4=3-(-25)
=> -5+x+4=3+25
=> x=3+25-4+5
=> x=29
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a, -(-5)-(+7)+(+3)+(-8)
= 5 - 7 + 3 + (-8)
= (-2) + 3 + (-8)
= 1 + (-8)
= -7
b, -(-15)-|-10|+|-9|-|5I
= 15 - 10 + 9 - 5
= 5 + 9 - 5
= 14 - 5
= 9
c, 14-(-13)-(17)+(-12)
= 14 + 13 - 17 + (-12)
= 27 - 17 + (-12)
= 10 + (-12)
= 2
d, -|-14| + |-10| - (-12) + (-8)
= -14 + 10 + 12 + (-8)
= (-4) + 12 + (-8)
= 7 + (-8)
= -1
e, -(-11) + (-15) + (13) - 21
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a; A = -1 + 3 - 5 + 7 - 9 + 11 - 13 + 15 - 17
A = (-1 + 11) + ( 3 - 13) + (-5 + 15) + (7 - 17) - 9
A = 10 - 10 + 10 - 10 - 9
A = (10 - 10) + (10 - 10) - 9
A = 0 + 0 - 9
A = -9
b; B = 1+2-3-4+5+6-7-8+9+10-11-12+13+14-15-16+17+18-19-20
B = (1+2-3-4) + (5+6-7-8)+(9+10-11-12)+(13+14-15-16)+(17+18-19-20)
B= -4+(-4)+(-4)+(-4)+(-4)
B= -4 . 5
B= -20
a: (-7)+(-14)+17
\(=\left(-7+17\right)+\left(-14\right)\)
\(=10-14=-4\)
b: Bạn ghi lại đề đi bạn
cảm ơn