7a-9=3a+3

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Solution for 7a-9=3a+3 equation:


Simplifying
7a + -9 = 3a + 3

Reorder the terms:
-9 + 7a = 3a + 3

Reorder the terms:
-9 + 7a = 3 + 3a

Solving
-9 + 7a = 3 + 3a

Solving for variable 'a'.

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

Add '-3a' to each side of the equation.
-9 + 7a + -3a = 3 + 3a + -3a

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

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

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

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

Combine like terms: 3 + 9 = 12
4a = 12

Divide each side by '4'.
a = 3

Simplifying
a = 3

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