Question

a) x – 4 = 6
b) 6x – 12 = 4x – 14
c) 3 ( x- 1 ) = 2 ( x + 12 )
d) 4 ( 3x – 2 ) + 2 ( x – 4 ) = 3 ( 6x – 2 )

Answer 1

Explicação passo-a-passo:

x – 4 = 6

x=6+4

x=10

6x – 12 = 4x – 14

6x-4x=-14+12

2x=-2

x=-2/2

x=-1

c) 3 ( x- 1 ) = 2 ( x + 12 )

3x-3=2x+24

3x-2x=24+3

x=27

d) 4 ( 3x – 2 ) + 2 ( x – 4 ) = 3 ( 6x – 2 )

12x-8+2x-8=18x-6

14x-16=18x-6

14x-18x=-6+16

-4x=10

x=-4÷2/10÷2

x=-2/5