2a+2(a-7)=86

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Solution for 2a+2(a-7)=86 equation:


Simplifying
2a + 2(a + -7) = 86

Reorder the terms:
2a + 2(-7 + a) = 86
2a + (-7 * 2 + a * 2) = 86
2a + (-14 + 2a) = 86

Reorder the terms:
-14 + 2a + 2a = 86

Combine like terms: 2a + 2a = 4a
-14 + 4a = 86

Solving
-14 + 4a = 86

Solving for variable 'a'.

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

Add '14' to each side of the equation.
-14 + 14 + 4a = 86 + 14

Combine like terms: -14 + 14 = 0
0 + 4a = 86 + 14
4a = 86 + 14

Combine like terms: 86 + 14 = 100
4a = 100

Divide each side by '4'.
a = 25

Simplifying
a = 25

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