4x+5x=20-x

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Solution for 4x+5x=20-x equation:


Simplifying
4x + 5x = 20 + -1x

Combine like terms: 4x + 5x = 9x
9x = 20 + -1x

Solving
9x = 20 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
9x + x = 20 + -1x + x

Combine like terms: 9x + x = 10x
10x = 20 + -1x + x

Combine like terms: -1x + x = 0
10x = 20 + 0
10x = 20

Divide each side by '10'.
x = 2

Simplifying
x = 2

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