18.9=2.1x

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Solution for 18.9=2.1x equation:


Simplifying
18.9 = 2.1x

Solving
18.9 = 2.1x

Solving for variable 'x'.

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

Add '-2.1x' to each side of the equation.
18.9 + -2.1x = 2.1x + -2.1x

Combine like terms: 2.1x + -2.1x = 0.0
18.9 + -2.1x = 0.0

Add '-18.9' to each side of the equation.
18.9 + -18.9 + -2.1x = 0.0 + -18.9

Combine like terms: 18.9 + -18.9 = 0.0
0.0 + -2.1x = 0.0 + -18.9
-2.1x = 0.0 + -18.9

Combine like terms: 0.0 + -18.9 = -18.9
-2.1x = -18.9

Divide each side by '-2.1'.
x = 9

Simplifying
x = 9

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