Question

D) 5x+2=6x+7
E) 8x-1=3x+8

Answer 1

fica assim:
d)
5x+2=6x+7
5x-6x=7-2
-x=5(-1)
x=-5
e)
8x-1=3x+8
8x-3x=8+1
5x=9
x=9/5
x=1,8
espero ter ajudado!

Answer 2

Resposta:

ola

$5x + 2 = 6x + 7 \\ 5x + 2 - 6x = 7 \\ 5x - 6x = 7 - 2 \\ - x = 7 - 2 \\ - x = 5 \\ x = - 5$

$8x - 3x = 8 + 1 \\ 5x = 8 + 1 \\ 5x = 9 \\ x = \frac{9}{5}$

bons estudos