75-3x=42x+20

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Solution for 75-3x=42x+20 equation:


Simplifying
75 + -3x = 42x + 20

Reorder the terms:
75 + -3x = 20 + 42x

Solving
75 + -3x = 20 + 42x

Solving for variable 'x'.

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

Add '-42x' to each side of the equation.
75 + -3x + -42x = 20 + 42x + -42x

Combine like terms: -3x + -42x = -45x
75 + -45x = 20 + 42x + -42x

Combine like terms: 42x + -42x = 0
75 + -45x = 20 + 0
75 + -45x = 20

Add '-75' to each side of the equation.
75 + -75 + -45x = 20 + -75

Combine like terms: 75 + -75 = 0
0 + -45x = 20 + -75
-45x = 20 + -75

Combine like terms: 20 + -75 = -55
-45x = -55

Divide each side by '-45'.
x = 1.222222222

Simplifying
x = 1.222222222

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