Question

Resolva a equação -2.(9+x)=5.(2x-3)+9

Answer 1

Resposta:

$- 2x \times (9 \times + x) = 5 \times (2x - 3) + 9 \\ - 18 - 2x = 10x - 15 + 9 \\ - 2x - 10x = - 15 + 9 + 18 \\ - 12 x= 12 \\ 12x = 12 \\ x = 12 \div 12 \\ x = 1$