Question

a) 2x + 5 -5x = -1
b) 5 + 6x = 5x + 2
c) x + 2x - 1 - 3 = x
d) -3x + 10 = 2x + 8 +1 resolva​

Answer 1

Resposta:

a. x=2

b. x=-3

c. x=2

d. x=0,2 ou 1/5

Explicação passo-a-passo:

a) 2x + 5 -5x = -1

2x-5x=-1-5

-3x=-6 .(-1)

3x=6

x=6/3

x=2

b) 5 + 6x = 5x + 2

6x-5x=2-5

x=-3

c) x + 2x - 1 - 3 = x

x+2x-x=1+3

2x=4

x=4/2

x=2

d) -3x + 10 = 2x + 8 +1

-3x-2x=8+1-10

-5x=9-10

-5x=-1 .(-1)

x=1/5

x=0,2