3a-9=4a-65

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Solution for 3a-9=4a-65 equation:


Simplifying
3a + -9 = 4a + -65

Reorder the terms:
-9 + 3a = 4a + -65

Reorder the terms:
-9 + 3a = -65 + 4a

Solving
-9 + 3a = -65 + 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 = -65 + 4a + -4a

Combine like terms: 3a + -4a = -1a
-9 + -1a = -65 + 4a + -4a

Combine like terms: 4a + -4a = 0
-9 + -1a = -65 + 0
-9 + -1a = -65

Add '9' to each side of the equation.
-9 + 9 + -1a = -65 + 9

Combine like terms: -9 + 9 = 0
0 + -1a = -65 + 9
-1a = -65 + 9

Combine like terms: -65 + 9 = -56
-1a = -56

Divide each side by '-1'.
a = 56

Simplifying
a = 56

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