Question

como resolvo 5x menos 10 é igual a 1/2

Answer 1

5x-10=1/2
mmc
10x/2-20/2=1/2
retira-se as bases
10x-20=1
10x=21
x=21/10
x=2,1

Answer 2

5x - 10 = 1/2

5x • 2 - 10 • 2 = 1

10x - 20 = 1

10x = 1 + 20

10x = 21

x= 21/10 ou 2,1