3-2.7*(8-x)=16.5

Solution for 3-2.7*(8-x)=16.5 equation:

Simplifying
3 + -2.7(8 + -1x) = 16.5
3 + (8 * -2.7 + -1x * -2.7) = 16.5
3 + (-21.6 + 2.7x) = 16.5

Combine like terms: 3 + -21.6 = -18.6
-18.6 + 2.7x = 16.5

Solving
-18.6 + 2.7x = 16.5

Solving for variable 'x'.

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

Add '18.6' to each side of the equation.
-18.6 + 18.6 + 2.7x = 16.5 + 18.6

Combine like terms: -18.6 + 18.6 = 0.0
0.0 + 2.7x = 16.5 + 18.6
2.7x = 16.5 + 18.6

Combine like terms: 16.5 + 18.6 = 35.1
2.7x = 35.1

Divide each side by '2.7'.
x = 13

Simplifying
x = 13