-1a-3=3a-7

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Solution for -1a-3=3a-7 equation:


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

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

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

Solving
-3 + -1a = -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.
-3 + -1a + -3a = -7 + 3a + -3a

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

Combine like terms: 3a + -3a = 0
-3 + -4a = -7 + 0
-3 + -4a = -7

Add '3' to each side of the equation.
-3 + 3 + -4a = -7 + 3

Combine like terms: -3 + 3 = 0
0 + -4a = -7 + 3
-4a = -7 + 3

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

Divide each side by '-4'.
a = 1

Simplifying
a = 1

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