(1.5*8.40)*7=x

Solution for (1.5*8.40)*7=x equation:

Simplifying
(1.5 * 8.40) * 7 = x

Multiply 1.5 * 8.40
(12.6) * 7 = x

Multiply 12.6 * 7
88.2 = x

Solving
88.2 = 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.
88.2 + -1x = x + -1x

Combine like terms: x + -1x = 0
88.2 + -1x = 0

Add '-88.2' to each side of the equation.
88.2 + -88.2 + -1x = 0 + -88.2

Combine like terms: 88.2 + -88.2 = 0.0
0.0 + -1x = 0 + -88.2
-1x = 0 + -88.2

Combine like terms: 0 + -88.2 = -88.2
-1x = -88.2

Divide each side by '-1'.
x = 88.2

Simplifying
x = 88.2