15-3a=-4a+6

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Solution for 15-3a=-4a+6 equation:


Simplifying
15 + -3a = -4a + 6

Reorder the terms:
15 + -3a = 6 + -4a

Solving
15 + -3a = 6 + -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 + -3a + 4a = 6 + -4a + 4a

Combine like terms: -3a + 4a = 1a
15 + 1a = 6 + -4a + 4a

Combine like terms: -4a + 4a = 0
15 + 1a = 6 + 0
15 + 1a = 6

Add '-15' to each side of the equation.
15 + -15 + 1a = 6 + -15

Combine like terms: 15 + -15 = 0
0 + 1a = 6 + -15
1a = 6 + -15

Combine like terms: 6 + -15 = -9
1a = -9

Divide each side by '1'.
a = -9

Simplifying
a = -9

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