((21-1)*15)+15=315

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Solution for ((21-1)*15)+15=315 equation: 


Simplifying
((21 + -1) * 15) + 15 = 315

Combine like terms: 21 + -1 = 20
((20) * 15) + 15 = 315

Multiply 20 * 15
(300) + 15 = 315
300 + 15 = 315

Combine like terms: 300 + 15 = 315
315 = 315

Add '-315' to each side of the equation.
315 + -315 = 315 + -315

Combine like terms: 315 + -315 = 0
0 = 315 + -315

Combine like terms: 315 + -315 = 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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