-a-3+7=3a+3-7

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Solution for -a-3+7=3a+3-7 equation:


Simplifying
-1a + -3 + 7 = 3a + 3 + -7

Reorder the terms:
-3 + 7 + -1a = 3a + 3 + -7

Combine like terms: -3 + 7 = 4
4 + -1a = 3a + 3 + -7

Reorder the terms:
4 + -1a = 3 + -7 + 3a

Combine like terms: 3 + -7 = -4
4 + -1a = -4 + 3a

Solving
4 + -1a = -4 + 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.
4 + -1a + -3a = -4 + 3a + -3a

Combine like terms: -1a + -3a = -4a
4 + -4a = -4 + 3a + -3a

Combine like terms: 3a + -3a = 0
4 + -4a = -4 + 0
4 + -4a = -4

Add '-4' to each side of the equation.
4 + -4 + -4a = -4 + -4

Combine like terms: 4 + -4 = 0
0 + -4a = -4 + -4
-4a = -4 + -4

Combine like terms: -4 + -4 = -8
-4a = -8

Divide each side by '-4'.
a = 2

Simplifying
a = 2

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