21(6a+15)=6993

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Solution for 21(6a+15)=6993 equation: 


Simplifying
21(6a + 15) = 6993

Reorder the terms:
21(15 + 6a) = 6993
(15 * 21 + 6a * 21) = 6993
(315 + 126a) = 6993

Solving
315 + 126a = 6993

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '-315' to each side of the equation.
315 + -315 + 126a = 6993 + -315

Combine like terms: 315 + -315 = 0
0 + 126a = 6993 + -315
126a = 6993 + -315

Combine like terms: 6993 + -315 = 6678
126a = 6678

Divide each side by '126'.
a = 53

Simplifying
a = 53

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