-a-11a=2(11a-11)+2(a-7)

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Solution for -a-11a=2(11a-11)+2(a-7) equation:


Simplifying
-1a + -11a = 2(11a + -11) + 2(a + -7)

Combine like terms: -1a + -11a = -12a
-12a = 2(11a + -11) + 2(a + -7)

Reorder the terms:
-12a = 2(-11 + 11a) + 2(a + -7)
-12a = (-11 * 2 + 11a * 2) + 2(a + -7)
-12a = (-22 + 22a) + 2(a + -7)

Reorder the terms:
-12a = -22 + 22a + 2(-7 + a)
-12a = -22 + 22a + (-7 * 2 + a * 2)
-12a = -22 + 22a + (-14 + 2a)

Reorder the terms:
-12a = -22 + -14 + 22a + 2a

Combine like terms: -22 + -14 = -36
-12a = -36 + 22a + 2a

Combine like terms: 22a + 2a = 24a
-12a = -36 + 24a

Solving
-12a = -36 + 24a

Solving for variable 'a'.

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

Add '-24a' to each side of the equation.
-12a + -24a = -36 + 24a + -24a

Combine like terms: -12a + -24a = -36a
-36a = -36 + 24a + -24a

Combine like terms: 24a + -24a = 0
-36a = -36 + 0
-36a = -36

Divide each side by '-36'.
a = 1

Simplifying
a = 1

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