Question

Resolva as equações
A)2X-4+10-5X=-6X-6
B)7(X-4)=2X-3
C)2(X-2)=4(3-X)
D)3(3X-1)=2(3X+2)

Com raciocínio pfv

Answer 1

a)2x-4+10-5x=6x-6
2x+5x-6x=-6-10+4
x=-12
b)7(x-4)=2x-3
7x-28=2x-3
7x-2x=28-3
5x=25
x=$\frac{25}{5}$
x=5
c)2(x-2)=4(3-x)
2x-4=12-x
2x+x=12+4
3x=16
x=$\frac{16}{3}$
x=5,33...
d)3(3x-1)=2(3x+2)
9x-3=6x+4
9x-6x=4+3
3x=7
x=$\frac{7}{3}$
x=2,33...