7a-4a+8-9a-2=6a-2a+20-5a+16

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Solution for 7a-4a+8-9a-2=6a-2a+20-5a+16 equation:


Simplifying
7a + -4a + 8 + -9a + -2 = 6a + -2a + 20 + -5a + 16

Reorder the terms:
8 + -2 + 7a + -4a + -9a = 6a + -2a + 20 + -5a + 16

Combine like terms: 8 + -2 = 6
6 + 7a + -4a + -9a = 6a + -2a + 20 + -5a + 16

Combine like terms: 7a + -4a = 3a
6 + 3a + -9a = 6a + -2a + 20 + -5a + 16

Combine like terms: 3a + -9a = -6a
6 + -6a = 6a + -2a + 20 + -5a + 16

Reorder the terms:
6 + -6a = 20 + 16 + 6a + -2a + -5a

Combine like terms: 20 + 16 = 36
6 + -6a = 36 + 6a + -2a + -5a

Combine like terms: 6a + -2a = 4a
6 + -6a = 36 + 4a + -5a

Combine like terms: 4a + -5a = -1a
6 + -6a = 36 + -1a

Solving
6 + -6a = 36 + -1a

Solving for variable 'a'.

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

Add 'a' to each side of the equation.
6 + -6a + a = 36 + -1a + a

Combine like terms: -6a + a = -5a
6 + -5a = 36 + -1a + a

Combine like terms: -1a + a = 0
6 + -5a = 36 + 0
6 + -5a = 36

Add '-6' to each side of the equation.
6 + -6 + -5a = 36 + -6

Combine like terms: 6 + -6 = 0
0 + -5a = 36 + -6
-5a = 36 + -6

Combine like terms: 36 + -6 = 30
-5a = 30

Divide each side by '-5'.
a = -6

Simplifying
a = -6

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