8a-9a+3a-7a=5a+3+6a+15

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Solution for 8a-9a+3a-7a=5a+3+6a+15 equation: 


Simplifying
8a + -9a + 3a + -7a = 5a + 3 + 6a + 15

Combine like terms: 8a + -9a = -1a
-1a + 3a + -7a = 5a + 3 + 6a + 15

Combine like terms: -1a + 3a = 2a
2a + -7a = 5a + 3 + 6a + 15

Combine like terms: 2a + -7a = -5a
-5a = 5a + 3 + 6a + 15

Reorder the terms:
-5a = 3 + 15 + 5a + 6a

Combine like terms: 3 + 15 = 18
-5a = 18 + 5a + 6a

Combine like terms: 5a + 6a = 11a
-5a = 18 + 11a

Solving
-5a = 18 + 11a

Solving for variable 'a'.

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

Add '-11a' to each side of the equation.
-5a + -11a = 18 + 11a + -11a

Combine like terms: -5a + -11a = -16a
-16a = 18 + 11a + -11a

Combine like terms: 11a + -11a = 0
-16a = 18 + 0
-16a = 18

Divide each side by '-16'.
a = -1.125

Simplifying
a = -1.125

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