7(a+2)-2(a+7)=0

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Solution for 7(a+2)-2(a+7)=0 equation:


Simplifying
7(a + 2) + -2(a + 7) = 0

Reorder the terms:
7(2 + a) + -2(a + 7) = 0
(2 * 7 + a * 7) + -2(a + 7) = 0
(14 + 7a) + -2(a + 7) = 0

Reorder the terms:
14 + 7a + -2(7 + a) = 0
14 + 7a + (7 * -2 + a * -2) = 0
14 + 7a + (-14 + -2a) = 0

Reorder the terms:
14 + -14 + 7a + -2a = 0

Combine like terms: 14 + -14 = 0
0 + 7a + -2a = 0
7a + -2a = 0

Combine like terms: 7a + -2a = 5a
5a = 0

Solving
5a = 0

Solving for variable 'a'.

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

Divide each side by '5'.
a = 0

Simplifying
a = 0

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