Question

4x-1 =3 (x-1)
b) 2(x-1) = 3x +4
c) 7(x - 4) = 2x - 3
d) 2x + 3x +9 = 8 (6 - x)​​

Answer 1

Resposta:

Explicação passo-a-passo:

a) 4x-3x=1-3

x=-2

b)2x-2=3x+4

-6=x

c)7x-21=2x-3

7x-2x=21-3

5x=19

3,8

d) 5x +9= 48-8x

12x=39

x=39/12

x= 3,25

Answer 2

Resposta:

a.

4x-1= 3(x-1)

4x-1=3x-3

4x-3x= -3+1

     x= -2

b.2(x-1) = 3x + 4

2x - 2 = 3x + 4

2x - 3x = 4 + 2

- x = 6 .(-1)  

 x = - 6

c.7(x - 4) = 2x - 3

7x - 28 = 2x - 3

7x - 2x = - 3 + 28

5x = 25

x = 25/5

x = 5

d.2x+3x+9=8(6-x)

2x+3x+9=48-8x

2x+3x+8x=48-9

13x=39

x= 39 ÷ 13

x= 3