17-4.2=x

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Solution for 17-4.2=x equation:


Simplifying
17 + -4.2 = x

Combine like terms: 17 + -4.2 = 12.8
12.8 = x

Solving
12.8 = 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.
12.8 + -1x = x + -1x

Combine like terms: x + -1x = 0
12.8 + -1x = 0

Add '-12.8' to each side of the equation.
12.8 + -12.8 + -1x = 0 + -12.8

Combine like terms: 12.8 + -12.8 = 0.0
0.0 + -1x = 0 + -12.8
-1x = 0 + -12.8

Combine like terms: 0 + -12.8 = -12.8
-1x = -12.8

Divide each side by '-1'.
x = 12.8

Simplifying
x = 12.8

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