6x+2(400-x)=400*5.5

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Solution for 6x+2(400-x)=400*5.5 equation:


Simplifying
6x + 2(400 + -1x) = 400 * 5.5
6x + (400 * 2 + -1x * 2) = 400 * 5.5
6x + (800 + -2x) = 400 * 5.5

Reorder the terms:
800 + 6x + -2x = 400 * 5.5

Combine like terms: 6x + -2x = 4x
800 + 4x = 400 * 5.5

Multiply 400 * 5.5
800 + 4x = 2200

Solving
800 + 4x = 2200

Solving for variable 'x'.

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

Add '-800' to each side of the equation.
800 + -800 + 4x = 2200 + -800

Combine like terms: 800 + -800 = 0
0 + 4x = 2200 + -800
4x = 2200 + -800

Combine like terms: 2200 + -800 = 1400
4x = 1400

Divide each side by '4'.
x = 350

Simplifying
x = 350

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