9+2a+1=3a-8

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Solution for 9+2a+1=3a-8 equation:


Simplifying
9 + 2a + 1 = 3a + -8

Reorder the terms:
9 + 1 + 2a = 3a + -8

Combine like terms: 9 + 1 = 10
10 + 2a = 3a + -8

Reorder the terms:
10 + 2a = -8 + 3a

Solving
10 + 2a = -8 + 3a

Solving for variable 'a'.

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

Add '-3a' to each side of the equation.
10 + 2a + -3a = -8 + 3a + -3a

Combine like terms: 2a + -3a = -1a
10 + -1a = -8 + 3a + -3a

Combine like terms: 3a + -3a = 0
10 + -1a = -8 + 0
10 + -1a = -8

Add '-10' to each side of the equation.
10 + -10 + -1a = -8 + -10

Combine like terms: 10 + -10 = 0
0 + -1a = -8 + -10
-1a = -8 + -10

Combine like terms: -8 + -10 = -18
-1a = -18

Divide each side by '-1'.
a = 18

Simplifying
a = 18

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