Answer:
x=7
Step-by-step explanation:
7x + 68 = 2x + 103
68 + 7x = 2x + 103
68 + 7x = 103 + 2x
68 + 7x = 103 + 2x
68 + 7x + -2x = 103 + 2x + -2x
7x + -2x = 5x
68 + 5x = 103 + 2x + -2x
2x + -2x = 0
68 + 5x = 103 + 0
68 + 5x = 103
68 + -68 + 5x = 103 + -68
68 + -68 = 0
0 + 5x = 103 + -68
5x = 103 + -68
103 + -68 = 35
5x = 35
x = 7
