210(x-3)=840

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Solution for 210(x-3)=840 equation: 


Simplifying
210(x + -3) = 840

Reorder the terms:
210(-3 + x) = 840
(-3 * 210 + x * 210) = 840
(-630 + 210x) = 840

Solving
-630 + 210x = 840

Solving for variable 'x'.

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

Add '630' to each side of the equation.
-630 + 630 + 210x = 840 + 630

Combine like terms: -630 + 630 = 0
0 + 210x = 840 + 630
210x = 840 + 630

Combine like terms: 840 + 630 = 1470
210x = 1470

Divide each side by '210'.
x = 7

Simplifying
x = 7

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