12=1+8a+3a

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Solution for 12=1+8a+3a equation:


Simplifying
12 = 1 + 8a + 3a

Combine like terms: 8a + 3a = 11a
12 = 1 + 11a

Solving
12 = 1 + 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.
12 + -11a = 1 + 11a + -11a

Combine like terms: 11a + -11a = 0
12 + -11a = 1 + 0
12 + -11a = 1

Add '-12' to each side of the equation.
12 + -12 + -11a = 1 + -12

Combine like terms: 12 + -12 = 0
0 + -11a = 1 + -12
-11a = 1 + -12

Combine like terms: 1 + -12 = -11
-11a = -11

Divide each side by '-11'.
a = 1

Simplifying
a = 1

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