Question

12x-10=5x+11 Conta pf ... Trabalho de Matemática

Answer 1

12x - 10 = 5x + 11

12x - 5x = 11 + 10

7x = 21

x = 21/7

x = 3                  ok

Answer 2

12x-10=5x+11
12x-5x=10+11
7x=21
x= $\frac{21}{7}$
x=3