7a+3=3a-9

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


Simplifying
7a + 3 = 3a + -9

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

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

Solving
3 + 7a = -9 + 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.
3 + 7a + -3a = -9 + 3a + -3a

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

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

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

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

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

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

Simplifying
a = -3

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