9+2a=4a+15

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Solution for 9+2a=4a+15 equation:


Simplifying
9 + 2a = 4a + 15

Reorder the terms:
9 + 2a = 15 + 4a

Solving
9 + 2a = 15 + 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.
9 + 2a + -4a = 15 + 4a + -4a

Combine like terms: 2a + -4a = -2a
9 + -2a = 15 + 4a + -4a

Combine like terms: 4a + -4a = 0
9 + -2a = 15 + 0
9 + -2a = 15

Add '-9' to each side of the equation.
9 + -9 + -2a = 15 + -9

Combine like terms: 9 + -9 = 0
0 + -2a = 15 + -9
-2a = 15 + -9

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

Divide each side by '-2'.
a = -3

Simplifying
a = -3

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