2(x-10)=-6(2-x)-6x
2x-20=-12(+6x-6x)se eliminan
2x=-12+20
2x=8
x=8/2
x=4
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2(x-10)=-6(2-x)-6x
2x-20=-12(+6x-6x)se eliminan
2x=-12+20
2x=8
x=8/2
x=4