Question

resolva as equações de 1° grau
b) 4x - 10 = 2x + 2
c) 2x + 1 = 4x - 7
d) 7 (x - 1) -2 (x-5) = x-5
e)2x - 15 = -x
f) 3x - 5 = 19 + 5x

Answer 1

b- 4x-10=2x+2

4x-10-2x=2

4x-2x=2+10

2x=12

x=12/2

x=6

c-2x+1=4x-7

2x-4x=-7-1

2x=-8(*-1)

2x=8

x=8/2

x=4

e-2x-15=-x

2x+x=15

3x=15

x=15/3

x=5

f-3x-5=19+5x

3x-5x=19+5

2x=24

x=24/2

x=12

Answer 2

Resposta:

b- 4x-10=2x+2

4x-10-2x=2

4x-2x=2+10

2x=12

x=12/2

x=6

c-2x+1=4x-7

2x-4x=-7-1

2x=-8(*-1)

2x=8

x=8/2

x=4

e-2x-15=-x

2x+x=15

3x=15

x=15/3

x=5

f-3x-5=19+5x

3x-5x=19+5

2x=24

x=24/2

x=12

Explicação passo-a-passo: