7.5-4x=20

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Solution for 7.5-4x=20 equation: 


Simplifying
7.5 + -4x = 20

Solving
7.5 + -4x = 20

Solving for variable 'x'.

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

Add '-7.5' to each side of the equation.
7.5 + -7.5 + -4x = 20 + -7.5

Combine like terms: 7.5 + -7.5 = 0.0
0.0 + -4x = 20 + -7.5
-4x = 20 + -7.5

Combine like terms: 20 + -7.5 = 12.5
-4x = 12.5

Divide each side by '-4'.
x = -3.125

Simplifying
x = -3.125

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