-2(a-1)=3a+7

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Solution for -2(a-1)=3a+7 equation:


Simplifying
-2(a + -1) = 3a + 7

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

Reorder the terms:
2 + -2a = 7 + 3a

Solving
2 + -2a = 7 + 3a

Solving for variable 'a'.

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

Add '-3a' to each side of the equation.
2 + -2a + -3a = 7 + 3a + -3a

Combine like terms: -2a + -3a = -5a
2 + -5a = 7 + 3a + -3a

Combine like terms: 3a + -3a = 0
2 + -5a = 7 + 0
2 + -5a = 7

Add '-2' to each side of the equation.
2 + -2 + -5a = 7 + -2

Combine like terms: 2 + -2 = 0
0 + -5a = 7 + -2
-5a = 7 + -2

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

Divide each side by '-5'.
a = -1

Simplifying
a = -1

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