-6.8+(-12)+(-72.3)=x

Solution for -6.8+(-12)+(-72.3)=x equation:

Simplifying
-6.8 + (-12) + (-72.3) = x
-6.8 + -12 + (-72.3) = x
-6.8 + -12 + -72.3 = x

Combine like terms: -6.8 + -12 = -18.8
-18.8 + -72.3 = x

Combine like terms: -18.8 + -72.3 = -91.1
-91.1 = x

Solving
-91.1 = x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-91.1 + -1x = x + -1x

Combine like terms: x + -1x = 0
-91.1 + -1x = 0

Add '91.1' to each side of the equation.
-91.1 + 91.1 + -1x = 0 + 91.1

Combine like terms: -91.1 + 91.1 = 0.0
0.0 + -1x = 0 + 91.1
-1x = 0 + 91.1

Combine like terms: 0 + 91.1 = 91.1
-1x = 91.1

Divide each side by '-1'.
x = -91.1

Simplifying
x = -91.1