Question

15+7(3x×7)=13x como resolvo essa equacão ???

Answer 1

15+7(3x+7)=13x
15+21x+49=13x
21x-13x=-15-49
8x=-64
x = -64/8
x =-8

Answer 2

15+7(3x+7)=13x
15+21x+49=13x
21x-13x=-15-49
8x=-64
x=-64/8
x=-8
Resposta:  -8