2-2(х-1)=4(х-2) помогите решить

Question

2-2(х-1)=4(х-2) помогите решить

Answer 1

2-2(х-1)=4(х-2)
2-2*х+2*1=4*х-4*2
2-2х+2=4х-8
-2х-4х=-8-4
-6х=-12
х=-12:(-6)
х=2

Comments

1)5(x-2)-(x-1)=9

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5x-10-x+1=9

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4x=9+10-1

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x=4,5

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2)3-y+2(5-y)=4y-8

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3-y+10-2y=4y-8

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-y-2y-4y=-8-3-10

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-7y=-21

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y=3

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Всё?!?

Answer 2

2-2(x-1)=4(x-2)
2-2x+2=4x-8
-2x-4x=-8-2-2
-6x=-12
x=2
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Ответ:2