Question

Решите уравнение: (9x-7)-(6+7x)=5

Answer 1

9x-7-6-7x=5
9x-7x=5+7+6
2x=18
x=9

Answer 2

(9x - 7) - ( 6 + 7x) = 5
9x- 7 - 6 - 7x = 5
2x = 13 + 5
2x = 18
x= 18/2
x = 9