Answer:
x = 9.5
If they were separate equations,
x - 2 = 10 ⇒ x = 12
x + 6 = 13 ⇒ x = 7
Explanation:
x - 2 + x + 6= 10 + 13
2x + 4 = 23
2x + 4 - 4 = 23 - 4
2x = 19
2x ÷ 2 = 19 ÷ 2
x = 9.5
If they were separate,
x - 2 = 10
x - 2 + 2 = 10 + 2
x = 12
x + 6 = 13
x + 6 - 6 = 13 - 6
x = 7