Question

resolver las siguientes ecuaciones : A 4(2 -3x) = 2x - 27 B 3(2x - 2 ) = 2(3x + 9 ) C 3(4x + 7 ) = 4x - 25 D 7x + 15 = 3(3x - 7 por favor es urgente

Answer 1

A 4(2 -3x) = 2x - 27

8 - 12x = 2x - 27

-12x - 2x = -27 - 8

-14x = -35

x = -35/-14

x = 2.5

B 3(2x -x) = 2 (3x + 9)

6x - 3x = 6x + 18

6x - 3x - 6x = 18

-3x = 18

x = 18/3

x = 6

C 3(4x + 7) = 4x - 25

12x + 21 = 4x - 25

12x - 4x =-25 - 21

8x = -46

x = -46 /8

x = 5.75

D 7x + 15 = 3(3x - 7)

Answer 2

A) 8-12x=2x-27 ; 35=14x ; x=35/14