21-2.5*x=7.5

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Solution for 21-2.5*x=7.5 equation:


Simplifying
21 + -2.5x = 7.5

Solving
21 + -2.5x = 7.5

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -21 + -2.5x = 7.5 + -21

Combine like terms: 21 + -21 = 0
0 + -2.5x = 7.5 + -21
-2.5x = 7.5 + -21

Combine like terms: 7.5 + -21 = -13.5
-2.5x = -13.5

Divide each side by '-2.5'.
x = 5.4

Simplifying
x = 5.4

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