Question

1) Calcule x: *
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.






















​

Answer 1

Resposta:

Explicação passo-a-passo:

6/12  x+6/20

multiplica cruzado

12(x+6)=6.20

12x+ 72= 120

12x=120-72

12x=48

x=48:12

x=4