3+4a=2a-9

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Solution for 3+4a=2a-9 equation:


Simplifying
3 + 4a = 2a + -9

Reorder the terms:
3 + 4a = -9 + 2a

Solving
3 + 4a = -9 + 2a

Solving for variable 'a'.

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

Add '-2a' to each side of the equation.
3 + 4a + -2a = -9 + 2a + -2a

Combine like terms: 4a + -2a = 2a
3 + 2a = -9 + 2a + -2a

Combine like terms: 2a + -2a = 0
3 + 2a = -9 + 0
3 + 2a = -9

Add '-3' to each side of the equation.
3 + -3 + 2a = -9 + -3

Combine like terms: 3 + -3 = 0
0 + 2a = -9 + -3
2a = -9 + -3

Combine like terms: -9 + -3 = -12
2a = -12

Divide each side by '2'.
a = -6

Simplifying
a = -6

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