12.3=8.15+x

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Solution for 12.3=8.15+x equation:


Simplifying
12.3 = 8.15 + x

Solving
12.3 = 8.15 + 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.
12.3 + -1x = 8.15 + x + -1x

Combine like terms: x + -1x = 0
12.3 + -1x = 8.15 + 0
12.3 + -1x = 8.15

Add '-12.3' to each side of the equation.
12.3 + -12.3 + -1x = 8.15 + -12.3

Combine like terms: 12.3 + -12.3 = 0.0
0.0 + -1x = 8.15 + -12.3
-1x = 8.15 + -12.3

Combine like terms: 8.15 + -12.3 = -4.15
-1x = -4.15

Divide each side by '-1'.
x = 4.15

Simplifying
x = 4.15

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