Question

Resolva as seguintes equações, usando o passo a passo:
a) x + 5 = 8
b) x - 4 = 3
c) x + 6 = 5

d) x -3 = - 7
e) x - 39 = -79
f) 15 = x + 20

Answer 1

A) x + 5 = 8
x = 8 - 5
x = 3

B) x - 4 = 3
x = 3 + 4
x = 7

C) x + 6 = 5
x = 5 - 6
x= -1

D) x - 3 = -7
x = -7 + 3
x = -4

E) x - 39 = -79
x = -79 + 39
x = -40

F) 15 = x +20
15 - 20 = x
-5 = x

Answer 2

Resposta:

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