2(4-r)=-2(r+5)

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Solution for 2(4-r)=-2(r+5) equation: 


Simplifying
2(4 + -1r) = -2(r + 5)
(4 * 2 + -1r * 2) = -2(r + 5)
(8 + -2r) = -2(r + 5)

Reorder the terms:
8 + -2r = -2(5 + r)
8 + -2r = (5 * -2 + r * -2)
8 + -2r = (-10 + -2r)

Add '2r' to each side of the equation.
8 + -2r + 2r = -10 + -2r + 2r

Combine like terms: -2r + 2r = 0
8 + 0 = -10 + -2r + 2r
8 = -10 + -2r + 2r

Combine like terms: -2r + 2r = 0
8 = -10 + 0
8 = -10

Solving
8 = -10

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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