Question

1 - Resolva as equações:
a) 7x + 8 = 5x + 10
b) 4x + 15 = - 2x +3
c) 2x - 4-8= 4x​

Answer 1

Explicação passo-a-passo:

3x - 7==2x+5 b ) 7x +8=-4x-10 c)4x-15= -2x +3 d)2x -4-8=4x e)3x= x +1+7 f)360+36x=30x

Answer 2

Resposta:

$A) 7x+8=5x+10\\7x-5x=10-8\\2x=2\\x=\frac{2}{2}= 1$

$B) 4x+15=-2x+3\\4x+2x=3-15\\6x=-12\\x= \frac{-12}{6}= -2$

$C) 2x-4-8=4x\\2x-4x=4+8\\-2x=12\\x=\frac{12}{-2}= -6$

Espero ter ajudado!