5x+4(100-x)=

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Solution for 5x+4(100-x)= equation:


Simplifying
5x + 4(100 + -1x) = 0
5x + (100 * 4 + -1x * 4) = 0
5x + (400 + -4x) = 0

Reorder the terms:
400 + 5x + -4x = 0

Combine like terms: 5x + -4x = 1x
400 + 1x = 0

Solving
400 + 1x = 0

Solving for variable 'x'.

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

Add '-400' to each side of the equation.
400 + -400 + 1x = 0 + -400

Combine like terms: 400 + -400 = 0
0 + 1x = 0 + -400
1x = 0 + -400

Combine like terms: 0 + -400 = -400
1x = -400

Divide each side by '1'.
x = -400

Simplifying
x = -400

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