13-a=-2(a-3)

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


Simplifying
13 + -1a = -2(a + -3)

Reorder the terms:
13 + -1a = -2(-3 + a)
13 + -1a = (-3 * -2 + a * -2)
13 + -1a = (6 + -2a)

Solving
13 + -1a = 6 + -2a

Solving for variable 'a'.

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

Add '2a' to each side of the equation.
13 + -1a + 2a = 6 + -2a + 2a

Combine like terms: -1a + 2a = 1a
13 + 1a = 6 + -2a + 2a

Combine like terms: -2a + 2a = 0
13 + 1a = 6 + 0
13 + 1a = 6

Add '-13' to each side of the equation.
13 + -13 + 1a = 6 + -13

Combine like terms: 13 + -13 = 0
0 + 1a = 6 + -13
1a = 6 + -13

Combine like terms: 6 + -13 = -7
1a = -7

Divide each side by '1'.
a = -7

Simplifying
a = -7

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