21=.25x+15

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Solution for 21=.25x+15 equation:


Simplifying
21 = 0.25x + 15

Reorder the terms:
21 = 15 + 0.25x

Solving
21 = 15 + 0.25x

Solving for variable 'x'.

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

Add '-0.25x' to each side of the equation.
21 + -0.25x = 15 + 0.25x + -0.25x

Combine like terms: 0.25x + -0.25x = 0.00
21 + -0.25x = 15 + 0.00
21 + -0.25x = 15

Add '-21' to each side of the equation.
21 + -21 + -0.25x = 15 + -21

Combine like terms: 21 + -21 = 0
0 + -0.25x = 15 + -21
-0.25x = 15 + -21

Combine like terms: 15 + -21 = -6
-0.25x = -6

Divide each side by '-0.25'.
x = 24

Simplifying
x = 24

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