5.25x+2.75(5-x)=21.25

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Solution for 5.25x+2.75(5-x)=21.25 equation: 


Simplifying
5.25x + 2.75(5 + -1x) = 21.25
5.25x + (5 * 2.75 + -1x * 2.75) = 21.25
5.25x + (13.75 + -2.75x) = 21.25

Reorder the terms:
13.75 + 5.25x + -2.75x = 21.25

Combine like terms: 5.25x + -2.75x = 2.5x
13.75 + 2.5x = 21.25

Solving
13.75 + 2.5x = 21.25

Solving for variable 'x'.

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

Add '-13.75' to each side of the equation.
13.75 + -13.75 + 2.5x = 21.25 + -13.75

Combine like terms: 13.75 + -13.75 = 0.00
0.00 + 2.5x = 21.25 + -13.75
2.5x = 21.25 + -13.75

Combine like terms: 21.25 + -13.75 = 7.5
2.5x = 7.5

Divide each side by '2.5'.
x = 3

Simplifying
x = 3

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