3+2(a-7)=15

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Solution for 3+2(a-7)=15 equation: 


Simplifying
3 + 2(a + -7) = 15

Reorder the terms:
3 + 2(-7 + a) = 15
3 + (-7 * 2 + a * 2) = 15
3 + (-14 + 2a) = 15

Combine like terms: 3 + -14 = -11
-11 + 2a = 15

Solving
-11 + 2a = 15

Solving for variable 'a'.

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

Add '11' to each side of the equation.
-11 + 11 + 2a = 15 + 11

Combine like terms: -11 + 11 = 0
0 + 2a = 15 + 11
2a = 15 + 11

Combine like terms: 15 + 11 = 26
2a = 26

Divide each side by '2'.
a = 13

Simplifying
a = 13

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