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

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

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

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

Combine like terms: 7 + 2 = 9
9 + -2a = 3 + 1a

Solving
9 + -2a = 3 + 1a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
9 + -2a + -1a = 3 + 1a + -1a

Combine like terms: -2a + -1a = -3a
9 + -3a = 3 + 1a + -1a

Combine like terms: 1a + -1a = 0
9 + -3a = 3 + 0
9 + -3a = 3

Add '-9' to each side of the equation.
9 + -9 + -3a = 3 + -9

Combine like terms: 9 + -9 = 0
0 + -3a = 3 + -9
-3a = 3 + -9

Combine like terms: 3 + -9 = -6
-3a = -6

Divide each side by '-3'.
a = 2

Simplifying
a = 2