Question

Resolva as equações:
a) x - 5=
b)2x - 4= 8
c)2x - 5 = x + 1
d) 2x + 3 = x + 4
e) 4 (x + 3) = 1

Answer 1

OI

a) x - 5 = 0

x = 5

b) 2x - 4 = 8

2x = 8 + 4

2x = 12

x = 12/2

x = 6

c) 2x - 5 = x + 1

2x - x = 1 + 5

x = 6

d) 2x + 3 = x + 4

2x - x = 4 - 3

x = 1

e) 4(x + 3) = 1

4x + 12 = 1

4x = 1 - 12

x = - 11

x = - 11/4

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