Question

найдите корень уравнения 8+7х=9х+4

Answer 1

8+7x=9x+4
7x-9x=4-8
-2x=-4
x=2

Answer 2

7x - 9x = - 8 + 4
- 2x = - 4
2x = 4
x = 4/2
x = 2