15=-4(-5)-5

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Solution for 15=-4(-5)-5 equation: 


Simplifying
15 = -4(-5) + -5

Multiply -4 * -5
15 = 20 + -5

Combine like terms: 20 + -5 = 15
15 = 15

Add '-15' to each side of the equation.
15 + -15 = 15 + -15

Combine like terms: 15 + -15 = 0
0 = 15 + -15

Combine like terms: 15 + -15 = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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