7(a+9)=

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Solution for 7(a+9)= equation: 


Simplifying
7(a + 9) = 0

Reorder the terms:
7(9 + a) = 0
(9 * 7 + a * 7) = 0
(63 + 7a) = 0

Solving
63 + 7a = 0

Solving for variable 'a'.

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

Add '-63' to each side of the equation.
63 + -63 + 7a = 0 + -63

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

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

Divide each side by '7'.
a = -9

Simplifying
a = -9

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