15=2(a+5)

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


Simplifying
15 = 2(a + 5)

Reorder the terms:
15 = 2(5 + a)
15 = (5 * 2 + a * 2)
15 = (10 + 2a)

Solving
15 = 10 + 2a

Solving for variable 'a'.

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

Add '-2a' to each side of the equation.
15 + -2a = 10 + 2a + -2a

Combine like terms: 2a + -2a = 0
15 + -2a = 10 + 0
15 + -2a = 10

Add '-15' to each side of the equation.
15 + -15 + -2a = 10 + -15

Combine like terms: 15 + -15 = 0
0 + -2a = 10 + -15
-2a = 10 + -15

Combine like terms: 10 + -15 = -5
-2a = -5

Divide each side by '-2'.
a = 2.5

Simplifying
a = 2.5

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