Question

Resuelve las siguientes ecuaciones:
a. b + 10 = 30 + 15
b. k . 7 = 49
c. -150 = -30 x m

Answer 1

a. b + 10 = 30 + 15

b = 30 + 15 - 10

b = 45 - 10

b = 35

b. k x 7 = 49

k = 49 / 7

k = 7

c. - 150 = - 30 x m

-30 x m = - 150

-30 m = - 150

-30 m ÷ 30 = -150 ÷ 30

m = 5