-3+7a=5a+a

Solution for -3+7a=5a+a equation:

Simplifying
-3 + 7a = 5a + a

Combine like terms: 5a + a = 6a
-3 + 7a = 6a

Solving
-3 + 7a = 6a

Solving for variable 'a'.

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

Add '-6a' to each side of the equation.
-3 + 7a + -6a = 6a + -6a

Combine like terms: 7a + -6a = 1a
-3 + 1a = 6a + -6a

Combine like terms: 6a + -6a = 0
-3 + 1a = 0

Add '3' to each side of the equation.
-3 + 3 + 1a = 0 + 3

Combine like terms: -3 + 3 = 0
0 + 1a = 0 + 3
1a = 0 + 3

Combine like terms: 0 + 3 = 3
1a = 3

Divide each side by '1'.
a = 3

Simplifying
a = 3