4(1.5+6)-2c=-9

Solution for 4(1.5+6)-2c=-9 equation:

Simplifying
4(1.5 + 6) + -2c = -9

Combine like terms: 1.5 + 6 = 7.5
4(7.5) + -2c = -9

Multiply 4 * 7.5
30 + -2c = -9

Solving
30 + -2c = -9

Solving for variable 'c'.

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

Add '-30' to each side of the equation.
30 + -30 + -2c = -9 + -30

Combine like terms: 30 + -30 = 0
0 + -2c = -9 + -30
-2c = -9 + -30

Combine like terms: -9 + -30 = -39
-2c = -39

Divide each side by '-2'.
c = 19.5

Simplifying
c = 19.5