4a+6-(-26.5)=15

Solution for 4a+6-(-26.5)=15 equation:

Simplifying
4a + 6 + -1(-26.5) = 15

Multiply -1 * -26.5
4a + 6 + 26.5 = 15

Reorder the terms:
6 + 26.5 + 4a = 15

Combine like terms: 6 + 26.5 = 32.5
32.5 + 4a = 15

Solving
32.5 + 4a = 15

Solving for variable 'a'.

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

Add '-32.5' to each side of the equation.
32.5 + -32.5 + 4a = 15 + -32.5

Combine like terms: 32.5 + -32.5 = 0.0
0.0 + 4a = 15 + -32.5
4a = 15 + -32.5

Combine like terms: 15 + -32.5 = -17.5
4a = -17.5

Divide each side by '4'.
a = -4.375

Simplifying
a = -4.375