7+2(a-3)=-a

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

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

Reorder the terms:
7 + 2(-3 + a) = -1a
7 + (-3 * 2 + a * 2) = -1a
7 + (-6 + 2a) = -1a

Combine like terms: 7 + -6 = 1
1 + 2a = -1a

Solving
1 + 2a = -1a

Solving for variable 'a'.

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

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

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

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

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

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

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

Divide each side by '3'.
a = -0.3333333333

Simplifying
a = -0.3333333333