Question

2) Resolva a equação 2(x + 5) = - 3(x - 5) + 10
a) 3
b) 5
c) 10
d) 15

Answer 1

$2(x+5)=-3(x-5)+10\\2x+10=-3x+15+10\\2x+10=-3x+25\\2x+3x=25-10\\5x=15$

$x=\frac{15}{5}$

$x=3$