8(-6.75+8.40)+5.80=a

Solution for 8(-6.75+8.40)+5.80=a equation:

Simplifying
8(-6.75 + 8.40) + 5.80 = a

Combine like terms: -6.75 + 8.40 = 1.65
8(1.65) + 5.80 = a

Multiply 8 * 1.65
13.2 + 5.80 = a

Combine like terms: 13.2 + 5.80 = 19
19 = a

Solving
19 = a

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.
19 + -1a = a + -1a

Combine like terms: a + -1a = 0
19 + -1a = 0

Add '-19' to each side of the equation.
19 + -19 + -1a = 0 + -19

Combine like terms: 19 + -19 = 0
0 + -1a = 0 + -19
-1a = 0 + -19

Combine like terms: 0 + -19 = -19
-1a = -19

Divide each side by '-1'.
a = 19

Simplifying
a = 19