4.2=75+X

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Solution for 4.2=75+X equation: 


Simplifying
4.2 = 75 + X

Solving
4.2 = 75 + X

Solving for variable 'X'.

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

Add '-1X' to each side of the equation.
4.2 + -1X = 75 + X + -1X

Combine like terms: X + -1X = 0
4.2 + -1X = 75 + 0
4.2 + -1X = 75

Add '-4.2' to each side of the equation.
4.2 + -4.2 + -1X = 75 + -4.2

Combine like terms: 4.2 + -4.2 = 0.0
0.0 + -1X = 75 + -4.2
-1X = 75 + -4.2

Combine like terms: 75 + -4.2 = 70.8
-1X = 70.8

Divide each side by '-1'.
X = -70.8

Simplifying
X = -70.8

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