81.00=150-(5.00+x+7.50)

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Solution for 81.00=150-(5.00+x+7.50) equation: 


Simplifying
81.00 = 150 + -1(5.00 + x + 7.50)

Reorder the terms:
81.00 = 150 + -1(5.00 + 7.50 + x)

Combine like terms: 5.00 + 7.50 = 12.5
81.00 = 150 + -1(12.5 + x)
81.00 = 150 + (12.5 * -1 + x * -1)
81.00 = 150 + (-12.5 + -1x)

Combine like terms: 150 + -12.5 = 137.5
81.00 = 137.5 + -1x

Solving
81.00 = 137.5 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
81.00 + x = 137.5 + -1x + x

Combine like terms: -1x + x = 0
81.00 + x = 137.5 + 0
81.00 + x = 137.5

Add '-81.00' to each side of the equation.
81.00 + -81.00 + x = 137.5 + -81.00

Combine like terms: 81.00 + -81.00 = 0.00
0.00 + x = 137.5 + -81.00
x = 137.5 + -81.00

Combine like terms: 137.5 + -81.00 = 56.5
x = 56.5

Simplifying
x = 56.5

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