Question

Помогите плиз решить уравнение
4*(х+2)+5*(х+11)=198

Answer 1

4x + 8 + 5x + 55 = 198

9x + 63 = 198

9x =135

x = 15

Answer 2

$4(x + 2) + 5(x + 11) = 198 \\ 4x + 8 + 5x + 55 = 198 \\ 4x + 5x = 198 - 55 - 8 \\ 9x = 135 \\ x = 135 \div 9 \\ x = 15$