30=21+.99x

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Solution for 30=21+.99x equation:


Simplifying
30 = 21 + 0.99x

Solving
30 = 21 + 0.99x

Solving for variable 'x'.

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

Add '-0.99x' to each side of the equation.
30 + -0.99x = 21 + 0.99x + -0.99x

Combine like terms: 0.99x + -0.99x = 0.00
30 + -0.99x = 21 + 0.00
30 + -0.99x = 21

Add '-30' to each side of the equation.
30 + -30 + -0.99x = 21 + -30

Combine like terms: 30 + -30 = 0
0 + -0.99x = 21 + -30
-0.99x = 21 + -30

Combine like terms: 21 + -30 = -9
-0.99x = -9

Divide each side by '-0.99'.
x = 9.090909091

Simplifying
x = 9.090909091

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