7(a+6)=63

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Solution for 7(a+6)=63 equation: 


Simplifying
7(a + 6) = 63

Reorder the terms:
7(6 + a) = 63
(6 * 7 + a * 7) = 63
(42 + 7a) = 63

Solving
42 + 7a = 63

Solving for variable 'a'.

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

Add '-42' to each side of the equation.
42 + -42 + 7a = 63 + -42

Combine like terms: 42 + -42 = 0
0 + 7a = 63 + -42
7a = 63 + -42

Combine like terms: 63 + -42 = 21
7a = 21

Divide each side by '7'.
a = 3

Simplifying
a = 3

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