-(-2a+13)+(-9a-2)-(-7a-3)=

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Solution for -(-2a+13)+(-9a-2)-(-7a-3)= equation:


Simplifying
-1(-2a + 13) + (-9a + -2) + -1(-7a + -3) = 0

Reorder the terms:
-1(13 + -2a) + (-9a + -2) + -1(-7a + -3) = 0
(13 * -1 + -2a * -1) + (-9a + -2) + -1(-7a + -3) = 0
(-13 + 2a) + (-9a + -2) + -1(-7a + -3) = 0

Reorder the terms:
-13 + 2a + (-2 + -9a) + -1(-7a + -3) = 0

Remove parenthesis around (-2 + -9a)
-13 + 2a + -2 + -9a + -1(-7a + -3) = 0

Reorder the terms:
-13 + 2a + -2 + -9a + -1(-3 + -7a) = 0
-13 + 2a + -2 + -9a + (-3 * -1 + -7a * -1) = 0
-13 + 2a + -2 + -9a + (3 + 7a) = 0

Reorder the terms:
-13 + -2 + 3 + 2a + -9a + 7a = 0

Combine like terms: -13 + -2 = -15
-15 + 3 + 2a + -9a + 7a = 0

Combine like terms: -15 + 3 = -12
-12 + 2a + -9a + 7a = 0

Combine like terms: 2a + -9a = -7a
-12 + -7a + 7a = 0

Combine like terms: -7a + 7a = 0
-12 + 0 = 0
-12 = 0

Solving
-12 = 0

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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