Question

a) 2x + 6 = 138
b) x + 2 (x + 1) = 4
c) x + 1 = (2 - 1)
d) 4 (7x + 3) = x
e) 2x + 7x - 10 = 4 x + 3 - 2x

Answer 1

A) 2x + 6 = 138
2x = 138 - 6
2x = 132
x = 132/ 2
x = 66

b) x + 2 (x + 1) = 4
x + 2x + 2 = 4
3x = 4 - 2
3x = 2
x = 2/3

c) x + 1 = (2 - 1)
x = 1 - 1
x = 0

d) 4(7x + 3) = x
28x + 12 = x
28x - x = - 12
27x = - 12
x = - 12/27

e) 2x + 7x - 10 = 4x + 3 - 2x
9x - 4x + 2x = 3 + 10
7x = 13
x = 13/7

:)