-11=1+5a+7a

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Solution for -11=1+5a+7a equation:


Simplifying
-11 = 1 + 5a + 7a

Combine like terms: 5a + 7a = 12a
-11 = 1 + 12a

Solving
-11 = 1 + 12a

Solving for variable 'a'.

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

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

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

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

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

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

Divide each side by '-12'.
a = -1

Simplifying
a = -1

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