Question

Решите уравнение 4x + 15 = 7x + 18
Помогите пожалуйста

Answer 1

4x + 15 = 7x + 18

4x - 7x = 18 - 15

-3x = 3

x = -1

Answer 2

$4x + 15 = 7x + 18 \\ x = - 1 \\ 4x - 7x = + 18 - 15 \\ - 3x = 3 \\ x = \frac{3}{ - 3} = - 1$