2(a-1)+5=15

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Solution for 2(a-1)+5=15 equation:


Simplifying
2(a + -1) + 5 = 15

Reorder the terms:
2(-1 + a) + 5 = 15
(-1 * 2 + a * 2) + 5 = 15
(-2 + 2a) + 5 = 15

Reorder the terms:
-2 + 5 + 2a = 15

Combine like terms: -2 + 5 = 3
3 + 2a = 15

Solving
3 + 2a = 15

Solving for variable 'a'.

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

Add '-3' to each side of the equation.
3 + -3 + 2a = 15 + -3

Combine like terms: 3 + -3 = 0
0 + 2a = 15 + -3
2a = 15 + -3

Combine like terms: 15 + -3 = 12
2a = 12

Divide each side by '2'.
a = 6

Simplifying
a = 6

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