[2x]-8=40

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Solution for [2x]-8=40 equation: 


Simplifying
[2x] + -8 = 40

Reorder the terms:
-8 + [2x] = 40

Solving
-8 + [2x] = 40

Solving for variable 'x'.

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

Add '8' to each side of the equation.
-8 + 8 + [2x] = 40 + 8

Combine like terms: -8 + 8 = 0
0 + [2x] = 40 + 8
[2x] = 40 + 8

Combine like terms: 40 + 8 = 48
[2x] = 48

Divide each side by '2'.
x = 24

Simplifying
x = 24

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