-13=-6a-7a

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Solution for -13=-6a-7a equation:


Simplifying
-13 = -6a + -7a

Combine like terms: -6a + -7a = -13a
-13 = -13a

Solving
-13 = -13a

Solving for variable 'a'.

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

Add '13a' to each side of the equation.
-13 + 13a = -13a + 13a

Combine like terms: -13a + 13a = 0
-13 + 13a = 0

Add '13' to each side of the equation.
-13 + 13 + 13a = 0 + 13

Combine like terms: -13 + 13 = 0
0 + 13a = 0 + 13
13a = 0 + 13

Combine like terms: 0 + 13 = 13
13a = 13

Divide each side by '13'.
a = 1

Simplifying
a = 1

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