Question

resolva as equacoes:
e efetue
a) 2x = -8
b) 3y = 18
c) 2x = 0
d) -3x = 6
e) 2x +4 = 16
f) 4x = -16
g) -2y = 0
h) 3y + 1 = 10
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Answer 1

A) -2
B) 6
C) 0
D) -2
E) 6
F) -4
G) 0
H) 3

Answer 2

a) 2x = -8

x = -8/2

x = -4

b) 3y = 18

y = 18/3

y = 6

c) 2x = 0

x = 0/2

x = 0

d) -3x = 6

x = 6/-3

x = -2

e) 2x +4 = 16

2x = 16 - 4

2x = 12

x = 12/2

x = 6

f) 4x = -16

x = -16/4

x = -4

g) -2y = 0

y = 0/-2

y = 0

h) 3y + 1 = 10

3y = 10 - 1

3y = 9

y = 9/3

y = 3