Question

.......................7x+30=10x

Answer 1

$7x+30=10x\\\\7x+30-30=10x-30\\\\7x=10x-30\\\\7x-10x=10x-30-10x\\\\-3x=-30\\\\\frac{-3x}{-3}=\frac{-30}{-3}\\\\x=10$

Answer 2

Resposta:

Explicação passo a passo:

7x+30= 10x

7x-10x= -30

-3x= -30

X= -30/-3

X=10