Question

Gente por favor, me ajudaaaa, é pra amanhã,

1) Resolva:

A)5X-3+X=8-2X

B)14-3X=17+5X

C)13Y+5=21Y-3

D)12(X-4)=7X-1

E)4(8-Y)=2Y+5

F)7X-2(X+4)=-X+3X

Answer 1

Resposta:

A)5X-3+X=8-2X

5x + x + 2x = 8 + 3

8x = 11

x= 11/8

B)14-3X=17+5X

- 3x - 5x = 17 - 14

- 8x = 3 (-1)

8x = 3

x = 3/8

C)13Y+5=21Y-3

13y - 21y = - 5 - 3

-8y = - 8 (-1)

8y = 8

y = 8/8

y = 1

D)12(X-4)=7X-1

12x - 48= 7x - 1

12x - 7x = 48 -1

5x = 47

x = 47/5

E)4(8-Y)=2Y+5

32 - 4y = 2y + 5

-4y - 2y = 5 - 32

-6y = -27 (-1)

6y = 27

y=27/6

y = 9/2

F)7X-2(X+4)=-X+3X

7x - 2x - 6 = - x + 3x

7x - 2x + x - 3x = 6

1x = 6

x =6/1