9a+4-7a+11=9

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Solution for 9a+4-7a+11=9 equation:


Simplifying
9a + 4 + -7a + 11 = 9

Reorder the terms:
4 + 11 + 9a + -7a = 9

Combine like terms: 4 + 11 = 15
15 + 9a + -7a = 9

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

Solving
15 + 2a = 9

Solving for variable 'a'.

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

Add '-15' to each side of the equation.
15 + -15 + 2a = 9 + -15

Combine like terms: 15 + -15 = 0
0 + 2a = 9 + -15
2a = 9 + -15

Combine like terms: 9 + -15 = -6
2a = -6

Divide each side by '2'.
a = -3

Simplifying
a = -3

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