Question

RESLVA AS EQUAÇAOES 5X-10=2x-25, 3x=x+8 4(2x-1)+13=5(x+2) 8(x-1)=8-4(2x-3)

Answer 1

Olá...

a)

5x - 10 = 2x - 25

5x - 2x = - 25 + 10

3x = - 15

x = - 15/3

x = - 5

b)

3x = x + 8

3x - x = 8

2x = 8

x = 8/2

x = 4

c)

4(2x - 1) + 13 = 5(x+ 2)

8x - 4 + 13 = 5x + 10

8x - 5x = 10 - 13 + 4

3x = 1

x = 1/3

d)

8(x - 1) = 8 - 4(2x - 3)

8x - 8 = 8 - 8x + 12

8x + 8x = 8 + 12 + 8

16x = 28

x = 28/16 ÷ 4

x = 7/ 4

Espero ter ajudado.