4a+7a=8a-9

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Solution for 4a+7a=8a-9 equation:


Simplifying
4a + 7a = 8a + -9

Combine like terms: 4a + 7a = 11a
11a = 8a + -9

Reorder the terms:
11a = -9 + 8a

Solving
11a = -9 + 8a

Solving for variable 'a'.

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

Add '-8a' to each side of the equation.
11a + -8a = -9 + 8a + -8a

Combine like terms: 11a + -8a = 3a
3a = -9 + 8a + -8a

Combine like terms: 8a + -8a = 0
3a = -9 + 0
3a = -9

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

Simplifying
a = -3

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