9a+3=7a+15

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Solution for 9a+3=7a+15 equation:


Simplifying
9a + 3 = 7a + 15

Reorder the terms:
3 + 9a = 7a + 15

Reorder the terms:
3 + 9a = 15 + 7a

Solving
3 + 9a = 15 + 7a

Solving for variable 'a'.

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

Add '-7a' to each side of the equation.
3 + 9a + -7a = 15 + 7a + -7a

Combine like terms: 9a + -7a = 2a
3 + 2a = 15 + 7a + -7a

Combine like terms: 7a + -7a = 0
3 + 2a = 15 + 0
3 + 2a = 15

Add '-3' to each side of the equation.
3 + -3 + 2a = 15 + -3

Combine like terms: 3 + -3 = 0
0 + 2a = 15 + -3
2a = 15 + -3

Combine like terms: 15 + -3 = 12
2a = 12

Divide each side by '2'.
a = 6

Simplifying
a = 6

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