Question

Resolva a equação 30-X=20. Determine o valor de X 5+10=X/2​

Answer 1

30 - X = 20

30 - 20 - X = 20 - 20

10 - X = 0

- X = - 10

X = 10

5 + 10 = X / 2

10 + 20 = X

X = 30