a-3+a=7-3a

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


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

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

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

Solving
-3 + 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.
-3 + 2a + 3a = 7 + -3a + 3a

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

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

Add '3' to each side of the equation.
-3 + 3 + 5a = 7 + 3

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

Combine like terms: 7 + 3 = 10
5a = 10

Divide each side by '5'.
a = 2

Simplifying
a = 2

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