Question

resolva as equaçoes do 1 grau x+x/5=12 m/5+m/2+m/10=8

Answer 1

x+x/5 = 12
x+x = 12.5
2x = 60
x = 60/2
x = 30

m/5+m/2+m/10 = 8
mmc 5, 2, 10 = 10

2m+5m+m/10 (tudo sobre 10) = 8
2m+5m+m = 8.10
2m+5m+m = 80
8m = 80
m = 80/8
m = 10