0.5*x-7.5=4

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Solution for 0.5*x-7.5=4 equation: 


Simplifying
0.5x + -7.5 = 4

Reorder the terms:
-7.5 + 0.5x = 4

Solving
-7.5 + 0.5x = 4

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 + 0.5x = 4 + 7.5

Combine like terms: -7.5 + 7.5 = 0.0
0.0 + 0.5x = 4 + 7.5
0.5x = 4 + 7.5

Combine like terms: 4 + 7.5 = 11.5
0.5x = 11.5

Divide each side by '0.5'.
x = 23

Simplifying
x = 23

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