Question

CALCULE X

18x - 43 =



13x - 16 = 14 - 17x



10x – 5.(1 + x) = 3. (2x - 2) – 20



x(x + 4) + 4(x + 2) = 2x + 12




10.(x - 5) +2.(1 - 2x) = 4.(3-x)



4 (x + 6) - x = 5x

25X=100


30X=180



210X= 420


100X= 1000

Answer 1

Resposta:

Ola, tentarei ajudar

A) 18x - 43 =

x= 43-18= 25

B)13x - 16 = 14 - 17x

13x-16=14-17x

13x + 17x = 14 + 16

13x + 17x = 30

30x = 30

x = 30/30

x = 1

C)10x – 5.(1 + x) = 3. (2x - 2) – 20

10x-5-5x=6x-6-20

10x-5x-6x=-20-6+5

-x=-21

x=21

D)x(x + 4) + 4(x + 2) = 2x + 12

X + 4x + 4x+8=2x+12

7x= 12-8

7X=4

E)10.(x - 5) +2.(1 - 2x) = 4.(3-x)

10x-50+2-4x=12-4x

10x=12+50-2

10x= 60

4 (x + 6) - x = 5x

4x - x- 5x = - 24

-2x= - 24 ( -1)

2x= 24

x= 24/2

x= 12

25X=100

100%25=4

30X=180

180%30+ 6

210X= 420

420%210= 2

100X= 1000

1000%10=10

espero ter ajudado

Explicação passo-a-passo: