Question

x +7 =3 ( x-1 ) me ayudan con este ejercicio

Answer 1

x+7=3(x-1)
x+7=3x-3
10=2x
∴x=5

Answer 2

X + 7 = 3(x -1)

X + 7 = 3x - 3

x - 3x = -7 -3

- 2x = -10

x = -10 / -2 

x = 5