15=9a-3a+5-2a

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Solution for 15=9a-3a+5-2a equation:


Simplifying
15 = 9a + -3a + 5 + -2a

Reorder the terms:
15 = 5 + 9a + -3a + -2a

Combine like terms: 9a + -3a = 6a
15 = 5 + 6a + -2a

Combine like terms: 6a + -2a = 4a
15 = 5 + 4a

Solving
15 = 5 + 4a

Solving for variable 'a'.

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

Add '-4a' to each side of the equation.
15 + -4a = 5 + 4a + -4a

Combine like terms: 4a + -4a = 0
15 + -4a = 5 + 0
15 + -4a = 5

Add '-15' to each side of the equation.
15 + -15 + -4a = 5 + -15

Combine like terms: 15 + -15 = 0
0 + -4a = 5 + -15
-4a = 5 + -15

Combine like terms: 5 + -15 = -10
-4a = -10

Divide each side by '-4'.
a = 2.5

Simplifying
a = 2.5

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