(7-x)-(25+7)=-2
(7-x)-32=-2
7-x=-2+32
7-x=30
x=7-30
x=-23
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|x-5|=|-7|,|x-3|=7-(-2),(7-x)-(25+7)=-25
tìm số nguyên x , biết
| x + 2 | = 0
|x - 3 | = 7 - ( -2 )
( 7 - x ) - ( 25 + 7 ) = -25
| x - 3 | = | 5 | + | -7 |
| x - 5 | = | -7 |
4 - ( 7 - x ) = x - ( 13 - 4)
1/ (left(-dfrac{2}{3}right)^2 x dfrac{-9}{8} - 25% x dfrac{-16}{5} 2/ -1dfrac{2}{5} x 75% + dfrac{-7}{5} x 25% 3/ -2dfrac{3}{7} x (-125%) + dfrac{-17}{7} x 25% 4/ (-2)^3 x (dfrac{3}{4} x 0.25) : (2dfrac{1}{4} - 1dfrac{1}{6})
Đọc tiếp
1/ (\(\left(-\dfrac{2}{3}\right)\)\(^2\) x \(\dfrac{-9}{8}\) - 25% x \(\dfrac{-16}{5}\)
2/ -1\(\dfrac{2}{5}\) x 75% + \(\dfrac{-7}{5}\) x 25%
3/ -2\(\dfrac{3}{7}\) x (-125%) + \(\dfrac{-17}{7}\) x 25%
4/ (-2)\(^3\) x (\(\dfrac{3}{4}\) x 0.25) : (2\(\dfrac{1}{4}\) - 1\(\dfrac{1}{6}\))
a)15 - x = 7 - (-2)
b) 11 - ( 15 + 11 ) = x - (25 - 9 )
c) ( 7 - x ) - ( 25 + 7 ) =9 - 25
1. -2/9 x 15/17 + -2/9 x 2/17
2. -5/3 x 6/5 + -7/9 x 3/10
3. 15/20 x 7/5 + -9/7 x -6/4
4.-25/13 x 5/19 + -25/13 x 14/19
5 -7/13 x 13/5 + -9/7 x 5/3
24-25=(7-2 nhân x)-(25+7)
24-(15-x)=8+2 nhân x
tìm x biết
1) 9-25=(7-x)-(25+7)
2) (27-514) -(486-73)+x=7
3) 25+5+37-25+6-29-x=37
4) 14+(-12)+x =10-/-15/+ /-3/
5) 6x – 5 = 3 + 4x 6) x – (17 – x) = x – 7
7) 9 – 25 = (7 – x) – ( 25 + 7) 8) 10 – 2.(4 – 3x) = - 4
9) (-12)2
.x = 56 + 10. 13x 10) 2x2
– 1 = 49
Tìm số nguyên x biết:
a,|x+2|=0
b,|x-5|=|-7|
c,|x-3|=7-(-2)
d,(7-x)-(25+7)=-25
e,|x-3|=|5|+|-7|
g,4-(7-x)=x-(13-4)
Ai nhanh mình tích nha!!!!!!!!!!!!!!!!!!!!!!!!
Tìm x:
a) |x+2|=0
b) |x-5|=|-7|
c) |x-3|=7-(-2)
d) (7-x) - (25+7)=-25
e) x-[42+(-28)]=-8
f) |x-3|=|5|+|-7|
h) 9x-1=9
g)3×=9
h