Question

c)
$\frac{x}{2}$ + 7 + 6

d) 5x-3+2x- 10

i) 4x-6=5(x-6)

K) 4x -12= 7x-15

l) 6(-8x+1) = 2 ( 5x + 6)

Answer 1

Resposta:

Explicação passo-a-passo:

c)

\frac{x}{2} + 7 + 6

x/2+7+6=0

x/2+14/2+12/2=0

x+14+12=0

x=-26

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d) 5x-3+2x- 10 =0

7x=-13

x= -13/7

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i) 4x-6=5(x-6)

4x-6=5x-30

4x-5x=-30+6

-x=-24 (-1)

x= 24

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K) 4x -12= 7x-15

4x-7x=-15+12

-3x=-3

x=-3/3

x=-1

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l) 6(-8x+1) = 2 ( 5x + 6)

-48x+6=10x+12

-48x-10x=12-6

-58x=6

x=6/58 :2

x=3/29