3x-100=800

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Solution for 3x-100=800 equation: 


Simplifying
3x + -100 = 800

Reorder the terms:
-100 + 3x = 800

Solving
-100 + 3x = 800

Solving for variable 'x'.

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

Add '100' to each side of the equation.
-100 + 100 + 3x = 800 + 100

Combine like terms: -100 + 100 = 0
0 + 3x = 800 + 100
3x = 800 + 100

Combine like terms: 800 + 100 = 900
3x = 900

Divide each side by '3'.
x = 300

Simplifying
x = 300

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