a-9=4a+3

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


Simplifying
a + -9 = 4a + 3

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

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

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

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

Combine like terms: 4a + -4a = 0
-9 + -3a = 3 + 0
-9 + -3a = 3

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

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

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

Divide each side by '-3'.
a = -4

Simplifying
a = -4

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