5x+20(9-x)=105

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Solution for 5x+20(9-x)=105 equation:


Simplifying
5x + 20(9 + -1x) = 105
5x + (9 * 20 + -1x * 20) = 105
5x + (180 + -20x) = 105

Reorder the terms:
180 + 5x + -20x = 105

Combine like terms: 5x + -20x = -15x
180 + -15x = 105

Solving
180 + -15x = 105

Solving for variable 'x'.

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

Add '-180' to each side of the equation.
180 + -180 + -15x = 105 + -180

Combine like terms: 180 + -180 = 0
0 + -15x = 105 + -180
-15x = 105 + -180

Combine like terms: 105 + -180 = -75
-15x = -75

Divide each side by '-15'.
x = 5

Simplifying
x = 5

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