3(a+1)+7a-8=

Solution for 3(a+1)+7a-8= equation:

Simplifying
3(a + 1) + 7a + -8 = 0

Reorder the terms:
3(1 + a) + 7a + -8 = 0
(1 * 3 + a * 3) + 7a + -8 = 0
(3 + 3a) + 7a + -8 = 0

Reorder the terms:
3 + -8 + 3a + 7a = 0

Combine like terms: 3 + -8 = -5
-5 + 3a + 7a = 0

Combine like terms: 3a + 7a = 10a
-5 + 10a = 0

Solving
-5 + 10a = 0

Solving for variable 'a'.

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

Add '5' to each side of the equation.
-5 + 5 + 10a = 0 + 5

Combine like terms: -5 + 5 = 0
0 + 10a = 0 + 5
10a = 0 + 5

Combine like terms: 0 + 5 = 5
10a = 5

Divide each side by '10'.
a = 0.5

Simplifying
a = 0.5