-(-2a-7)=8(7a+7)-5a

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Solution for -(-2a-7)=8(7a+7)-5a equation:


Simplifying
-1(-2a + -7) = 8(7a + 7) + -5a

Reorder the terms:
-1(-7 + -2a) = 8(7a + 7) + -5a
(-7 * -1 + -2a * -1) = 8(7a + 7) + -5a
(7 + 2a) = 8(7a + 7) + -5a

Reorder the terms:
7 + 2a = 8(7 + 7a) + -5a
7 + 2a = (7 * 8 + 7a * 8) + -5a
7 + 2a = (56 + 56a) + -5a

Combine like terms: 56a + -5a = 51a
7 + 2a = 56 + 51a

Solving
7 + 2a = 56 + 51a

Solving for variable 'a'.

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

Add '-51a' to each side of the equation.
7 + 2a + -51a = 56 + 51a + -51a

Combine like terms: 2a + -51a = -49a
7 + -49a = 56 + 51a + -51a

Combine like terms: 51a + -51a = 0
7 + -49a = 56 + 0
7 + -49a = 56

Add '-7' to each side of the equation.
7 + -7 + -49a = 56 + -7

Combine like terms: 7 + -7 = 0
0 + -49a = 56 + -7
-49a = 56 + -7

Combine like terms: 56 + -7 = 49
-49a = 49

Divide each side by '-49'.
a = -1

Simplifying
a = -1

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