9x+3(800-x)=30

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Solution for 9x+3(800-x)=30 equation:


Simplifying
9x + 3(800 + -1x) = 30
9x + (800 * 3 + -1x * 3) = 30
9x + (2400 + -3x) = 30

Reorder the terms:
2400 + 9x + -3x = 30

Combine like terms: 9x + -3x = 6x
2400 + 6x = 30

Solving
2400 + 6x = 30

Solving for variable 'x'.

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

Add '-2400' to each side of the equation.
2400 + -2400 + 6x = 30 + -2400

Combine like terms: 2400 + -2400 = 0
0 + 6x = 30 + -2400
6x = 30 + -2400

Combine like terms: 30 + -2400 = -2370
6x = -2370

Divide each side by '6'.
x = -395

Simplifying
x = -395

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