15=-2(21-1)

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Solution for 15=-2(21-1) equation: 


Simplifying
15 = -2(21 + -1)

Combine like terms: 21 + -1 = 20
15 = -2(20)

Multiply -2 * 20
15 = -40

Solving
15 = -40

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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