15+4a=9a-5

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Solution for 15+4a=9a-5 equation:


Simplifying
15 + 4a = 9a + -5

Reorder the terms:
15 + 4a = -5 + 9a

Solving
15 + 4a = -5 + 9a

Solving for variable 'a'.

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

Add '-9a' to each side of the equation.
15 + 4a + -9a = -5 + 9a + -9a

Combine like terms: 4a + -9a = -5a
15 + -5a = -5 + 9a + -9a

Combine like terms: 9a + -9a = 0
15 + -5a = -5 + 0
15 + -5a = -5

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

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

Combine like terms: -5 + -15 = -20
-5a = -20

Divide each side by '-5'.
a = 4

Simplifying
a = 4

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