9-3a=4a

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Solution for 9-3a=4a equation:


Simplifying
9 + -3a = 4a

Solving
9 + -3a = 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 + -3a + -4a = 4a + -4a

Combine like terms: -3a + -4a = -7a
9 + -7a = 4a + -4a

Combine like terms: 4a + -4a = 0
9 + -7a = 0

Add '-9' to each side of the equation.
9 + -9 + -7a = 0 + -9

Combine like terms: 9 + -9 = 0
0 + -7a = 0 + -9
-7a = 0 + -9

Combine like terms: 0 + -9 = -9
-7a = -9

Divide each side by '-7'.
a = 1.285714286

Simplifying
a = 1.285714286

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