Question

3(x-1)-4(x-2)=6

2(5x+1)=27

2x-3(x-1)=8-2(x-2)

6x-5(1-x)=10x+6

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

6(x+3)-2(x-5)=20

Resposta é conta por favor

Answer 1

Olá !


Resolução :



3(X - 1) - 4(X - 2) = 6

3X - 3 - 4X + 8 = 6

3X - 4X = 6 + 3 - 8

3X - 4X = 9 - 8

3X - 4X = 1

-X = 1

X = -1


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2(5X + 1) = 27

10X + 2 = 27

10X = 27 - 2

10X = 25

X = 25/10

X = 2,5

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2X - 3(X - 1) = 8 - 2(X - 2)

2X - 3X + 3 = 8 - 2X + 4

2X - 3X + 2X = 8 + 4 - 3

2X - 3X + 2X = 8 + 1

2X - 3X + 2X = 9

2X - X = 9

X = 9

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6X - 5(1 - X) = 10X + 6

6X - 5 + 5X = 10X + 6

6X + 5X - 10X = 6 + 5

11X - 10X = 6 + 5

X = 6 + 5

X = 11


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3(2X + 4) = 4 ( X + 6)

6X + 12 = 4X + 24

6X - 4X = 24 - 12

2X = 24 - 12

2X = 12

X = 12/2

X = 6


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6(X + 3) - 2(x - 5) = 20

6X + 18 - 2X + 10 = 20

6X - 2X = 20 - 10 - 18

4X = 10 - 18

4X = -8

X = -8/4

X = -2