Question

resolva as equações do 1° grau:

a)3x-15=0

b)2x-14=0

c)4x+12=0

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Answer 1

Resposta:

a)3x-15=0

3x=15

×=15/3

×=5

b)2x-14=0

2×=14

×=14/2

×=7

c)4x+12=0

4×=-12

×=-12/4

×=-3

Answer 2

Resposta:

a.....x=15/3=5

b....x=14/2=7

c....x=- -12/4= -3