Question

Qual e a resposta da equaçao 9+2.(5x-4)=21?

Answer 1

9+10X-8=21 10X=21-9+8 10X=20 X=20/10 X=2

Answer 2

9 + 10x - 8 = 21
1 + 10x = 21
10x = 21 - 1
10x = 20
x = 20/10
x = 2