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12-2x = -2(y-x) please explain how you got the answer

1 Answer

3 votes

Answer:
x=(y+6)/(2)

Explanation:


12-2x=-2\left(y-x\right)

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(Expand:
-2\left(y-x\right))


=-2y-\left(-2\right)x


=-2y+2x

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12-2x=-2y+2x


-2x=-2y+2x-12


-2x-2x=-2y+2x-12-2x


-4x=-2y-12


(-4x)/(-4)=-(2y)/(-4)-(12)/(-4)

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(Simplify:
(-4x)/(-4))


(-4x)/(-4)


=(4x)/(4)


=x

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(Simplify:
-(2y)/(-4)-(12)/(-4))


=(-2y-12)/(-4)


-(-2y-12)/(4)


(-2y-12)/(4)


=-(y+6)/(2)


-\left(-(y+6)/(2)\right)


=(y+6)/(2)


x=(y+6)/(2)

User Bulat
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