Question

F)-2-x+5=-2x+3x-10x
G)-1-3x-7x+4-2=0
H)0=-3x+1-x-7x+10x-15
I)-2x+1-3x=-7+0,1
J)-2x-2x-0,2=1-0,5x
K)2(5+x)-10=4
L)3+4(2x-2)=0
M)3(2x+1)+4x=9
N)5x+2(3+x)=5
O)8+2(x-3)=8
P)2-5(x-1)-3=0
Q)1-2(x-1)=3x

A continuação dos problemas anteriores, quem puder me ajudar vou agradecer muito

Obrigada ​

Answer 1

Resposta e explicação passo-a-passo:

F)-2-x+5=-2x+3x-10x

-2x -x +2x -3x - 10x = -5

- 14x = -5 (*-1)

14x = 5

x= 5/14

G)-1-3x-7x+4-2=0

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

- 10x = - 1 (* -1)

10x = 1

x = 1/10

H)0=-3x+1-x-7x+10x-15

+3x +x +7x -10x = +1 -15

+x = -14

x = -14

I)-2x+1-3x=-7+0,1

-2x -3x = -1 -7 +0,1

5x = - 8 + 0,1

5x = 7,9

x = 7,9/5 ou 1,58

J)-2x-2x-0,2=1-0,5x

-2x -2x +0,5x = 1 +0,2

4x +0,5x = 1,2

3,5x = 1,2

x = 1,2/ 3,5 ou 12/35

K)2(5+x)-10=4

10 + 2x -10 = 4

2x = -10 +10 +4

2x = +4

x = 4/2 (÷ 2)

x = 2

L)3+4(2x-2)=0

3 + 8x -8 = 0

8x = +8 - 3

8x = 5

x = 5/8

M)3(2x+1)+4x=9

6x +3 +4x = 9

6x +4x = 9 - 3

10x = 6

x = 6/10 (÷ 2)

x = 3/5

N)5x+2(3+x)=5

5x +6 +2x = 5

5x + 2x = -6 + 5

7x = -1

x = -1/7

O)8+2(x-3)=8

8 + 2x -6 =8

2x = -8 +8 -6

2x = -6

x= -6/2 (÷ 2)

x = -3

P)2-5(x-1)-3=0

2 -5x +5 -3 = 0

-5x = -2 +3 -5

-5x = -4 (* -1)

5x = 4

x=4/5

Q)1-2(x-1)=3x

1 -2x +2 = 3x

-2x -3x = -1 -2

-5x = -3 (* -1)

5x = 3

x= 3/5

espero ter ajudado =)