Question

A)-x+1=2x-3
B)-5x+7-10=-3x+13-12
C)0=-x+-2x+5
D)-5+3-2x+1=0
E)-4x-1-3x=-2+7x-7

Me ajudem​

Answer 1

Resposta:

a) 4/3

b) +2

c) 5/3

d) 2

e) 7/4

Explicação passo-a-passo:

A)-x+1=2x-3

-x -2x = -1 - 3

-3x = -4 (* -1)

+3x = + 4

x=$\frac{4}{3}$

B)-5x+7-10=-3x+13-12

- 5x +3x = -7 +10 +13 - 12

- 2x = 4 (* -1)

2x = +4

x= 4/2

x= +2

C)0=-x+-2x+5

+ 1x + 2x = +5

3x = 5

x= 5/3

 

D)-5+3-2x+1=0

2x = +5 -3 -1

2x = 1

x= 2/1

x=2

E)-4x-1-3x=-2+7x-7

- 4x -3x -7x = +1 -7 -2

14x = 8

x = 14/ 8 (÷ 2)

x = 7/4

espero ter ajudado =)