3(21)-6=57

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Solution for 3(21)-6=57 equation: 


Simplifying
3(21) + -6 = 57

Multiply 3 * 21
63 + -6 = 57

Combine like terms: 63 + -6 = 57
57 = 57

Add '-57' to each side of the equation.
57 + -57 = 57 + -57

Combine like terms: 57 + -57 = 0
0 = 57 + -57

Combine like terms: 57 + -57 = 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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