20x-3=42

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Solution for 20x-3=42 equation: 


Simplifying
20x + -3 = 42

Reorder the terms:
-3 + 20x = 42

Solving
-3 + 20x = 42

Solving for variable 'x'.

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

Add '3' to each side of the equation.
-3 + 3 + 20x = 42 + 3

Combine like terms: -3 + 3 = 0
0 + 20x = 42 + 3
20x = 42 + 3

Combine like terms: 42 + 3 = 45
20x = 45

Divide each side by '20'.
x = 2.25

Simplifying
x = 2.25

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