2x+3(x-400)=2900

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Solution for 2x+3(x-400)=2900 equation:


Simplifying
2x + 3(x + -400) = 2900

Reorder the terms:
2x + 3(-400 + x) = 2900
2x + (-400 * 3 + x * 3) = 2900
2x + (-1200 + 3x) = 2900

Reorder the terms:
-1200 + 2x + 3x = 2900

Combine like terms: 2x + 3x = 5x
-1200 + 5x = 2900

Solving
-1200 + 5x = 2900

Solving for variable 'x'.

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

Add '1200' to each side of the equation.
-1200 + 1200 + 5x = 2900 + 1200

Combine like terms: -1200 + 1200 = 0
0 + 5x = 2900 + 1200
5x = 2900 + 1200

Combine like terms: 2900 + 1200 = 4100
5x = 4100

Divide each side by '5'.
x = 820

Simplifying
x = 820

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