-2a-9=6a+16

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Solution for -2a-9=6a+16 equation:


Simplifying
-2a + -9 = 6a + 16

Reorder the terms:
-9 + -2a = 6a + 16

Reorder the terms:
-9 + -2a = 16 + 6a

Solving
-9 + -2a = 16 + 6a

Solving for variable 'a'.

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

Add '-6a' to each side of the equation.
-9 + -2a + -6a = 16 + 6a + -6a

Combine like terms: -2a + -6a = -8a
-9 + -8a = 16 + 6a + -6a

Combine like terms: 6a + -6a = 0
-9 + -8a = 16 + 0
-9 + -8a = 16

Add '9' to each side of the equation.
-9 + 9 + -8a = 16 + 9

Combine like terms: -9 + 9 = 0
0 + -8a = 16 + 9
-8a = 16 + 9

Combine like terms: 16 + 9 = 25
-8a = 25

Divide each side by '-8'.
a = -3.125

Simplifying
a = -3.125

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