15a+9=10a

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Solution for 15a+9=10a equation:


Simplifying
15a + 9 = 10a

Reorder the terms:
9 + 15a = 10a

Solving
9 + 15a = 10a

Solving for variable 'a'.

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

Add '-10a' to each side of the equation.
9 + 15a + -10a = 10a + -10a

Combine like terms: 15a + -10a = 5a
9 + 5a = 10a + -10a

Combine like terms: 10a + -10a = 0
9 + 5a = 0

Add '-9' to each side of the equation.
9 + -9 + 5a = 0 + -9

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

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

Divide each side by '5'.
a = -1.8

Simplifying
a = -1.8

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