10.5-4.2=x

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Solution for 10.5-4.2=x equation:


Simplifying
10.5 + -4.2 = x

Combine like terms: 10.5 + -4.2 = 6.3
6.3 = x

Solving
6.3 = 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.
6.3 + -1x = x + -1x

Combine like terms: x + -1x = 0
6.3 + -1x = 0

Add '-6.3' to each side of the equation.
6.3 + -6.3 + -1x = 0 + -6.3

Combine like terms: 6.3 + -6.3 = 0.0
0.0 + -1x = 0 + -6.3
-1x = 0 + -6.3

Combine like terms: 0 + -6.3 = -6.3
-1x = -6.3

Divide each side by '-1'.
x = 6.3

Simplifying
x = 6.3

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