x+(3x-100)=800

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Solution for x+(3x-100)=800 equation:


Simplifying
x + (3x + -100) = 800

Reorder the terms:
x + (-100 + 3x) = 800

Remove parenthesis around (-100 + 3x)
x + -100 + 3x = 800

Reorder the terms:
-100 + x + 3x = 800

Combine like terms: x + 3x = 4x
-100 + 4x = 800

Solving
-100 + 4x = 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 + 4x = 800 + 100

Combine like terms: -100 + 100 = 0
0 + 4x = 800 + 100
4x = 800 + 100

Combine like terms: 800 + 100 = 900
4x = 900

Divide each side by '4'.
x = 225

Simplifying
x = 225

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