-2a-13=-3-9

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Solution for -2a-13=-3-9 equation:


Simplifying
-2a + -13 = -3 + -9

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

Combine like terms: -3 + -9 = -12
-13 + -2a = -12

Solving
-13 + -2a = -12

Solving for variable 'a'.

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

Add '13' to each side of the equation.
-13 + 13 + -2a = -12 + 13

Combine like terms: -13 + 13 = 0
0 + -2a = -12 + 13
-2a = -12 + 13

Combine like terms: -12 + 13 = 1
-2a = 1

Divide each side by '-2'.
a = -0.5

Simplifying
a = -0.5

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