21=-3(1-2x)-6(x-5)

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Solution for 21=-3(1-2x)-6(x-5) equation: 


Simplifying
21 = -3(1 + -2x) + -6(x + -5)
21 = (1 * -3 + -2x * -3) + -6(x + -5)
21 = (-3 + 6x) + -6(x + -5)

Reorder the terms:
21 = -3 + 6x + -6(-5 + x)
21 = -3 + 6x + (-5 * -6 + x * -6)
21 = -3 + 6x + (30 + -6x)

Reorder the terms:
21 = -3 + 30 + 6x + -6x

Combine like terms: -3 + 30 = 27
21 = 27 + 6x + -6x

Combine like terms: 6x + -6x = 0
21 = 27 + 0
21 = 27

Solving
21 = 27

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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