Bài làm
4( x - 3 ) - 5( 2 - x ) = 10x - 15
=> 4x - 12 - 10 + 5x = 10x - 15
=> 4x + 5x - 10x = 12 + 10 - 15
=> -x = 7
=> x = -7
Vậy x = -7
=4x-12-10+5x=10x-15
4x+5x-10x=-15+12+10
-x=7
x=-7
5(3-2x) 5(4-x)=6-4x
-5(2-x)+4(x-3)=10x-15
-7(5-x)-2(x-10)=15
-4(x+1)+89x-3)=24
5(x-30-2(x+6)=9
help,cần gấp
-5(2-x)+4)x-3)=10x-15
-5(2-x)+4(x-3)=10x-15
2(4x-8)-7(3+x)=4(3-2)
-7.(5-x) - 2.(x-10)=1
-5.(2-x)+4(x-3)=10x-15
Tìm x:
-5(2-x) + 4( x - 3) = 10x - 15
tim x 4.(x- 3)- 5.(2- x )= 10x- 15
Tìm x biết 4 . ( x-3 ) - 5. ( 2-x ) = 10x -15
a,5(3-2x)+5(x-4)=6-4x
b-5(2-x)+4(x-3)=10x-15
C,2(4x-8)-7(x-3)=|-4|(3-2)
d,8(x-|-7|)-6(x-2)=|-8|.6-50
Tìm x, biết:
a) 5.2²+(x+3)=5²
b)2³+(x-3²)=5³-4³
c)4.(x-5)-2³=2⁴.3
d)5.(x+7)-10=2³.5
e)7²-7.(13-x)=14
f)5x-5²=10
g)9x-2.3²=3⁴
h)10x+2².5=10²
i)125-5.(4+x)=15
j)2⁶+(5+x)=3⁴
