x-(.3x)=2100

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Solution for x-(.3x)=2100 equation: 


Simplifying
x + -1(0.3x) = 2100

Remove parenthesis around (0.3x)
x + -1 * 0.3x = 2100

Multiply -1 * 0.3
x + -0.3x = 2100

Combine like terms: x + -0.3x = 0.7x
0.7x = 2100

Solving
0.7x = 2100

Solving for variable 'x'.

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

Divide each side by '0.7'.
x = 3000

Simplifying
x = 3000

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