3(7a)=(3*7)a

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Solution for 3(7a)=(3*7)a equation: 


Simplifying
3(7a) = (3 * 7) * a

Remove parenthesis around (7a)
3 * 7a = (3 * 7) * a

Multiply 3 * 7
21a = (3 * 7) * a

Multiply 3 * 7
21a = (21) * a

Add '-21a' to each side of the equation.
21a + -21a = 21a + -21a

Combine like terms: 21a + -21a = 0
0 = 21a + -21a

Combine like terms: 21a + -21a = 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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