21(500)-3000=x

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Solution for 21(500)-3000=x equation:


Simplifying
21(500) + -3000 = x

Multiply 21 * 500
10500 + -3000 = x

Combine like terms: 10500 + -3000 = 7500
7500 = x

Solving
7500 = x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
7500 + -1x = x + -1x

Combine like terms: x + -1x = 0
7500 + -1x = 0

Add '-7500' to each side of the equation.
7500 + -7500 + -1x = 0 + -7500

Combine like terms: 7500 + -7500 = 0
0 + -1x = 0 + -7500
-1x = 0 + -7500

Combine like terms: 0 + -7500 = -7500
-1x = -7500

Divide each side by '-1'.
x = 7500

Simplifying
x = 7500

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