Question

1. Calcule as raízes a seguir
a) x + 5 = 6
b) X-4 = 3
c) 3x = 15
d) x/3 = 7
e) 4(x + 3) = 20
f) x/2 - X/4 = 1/2​

Answer 1

achando o X:

a) x = 6 - 5 = 1

b) x = 3 + 4 = 7

c) x = 15/3 = 5

d) x = 7 x 3 = 21

e) 4x + 12 = 20

4x = 20 - 12

x = 8/4 = 2