Question

Necesito saber esto

7x8+2x=4x+17

4(3x+1)-1x=3x+20

Answer 1

7x8+2x=4x+17
56+2x= 4x+17
56-17= 4x-2x
39= 2x
39/2 = x


4(3x+1)-1x=3x+20
12x+4-1x=3x+20
11x+4=3x+20
11x-3x=20-4
8x=16
x=16/8
x= 2

saludos .