30(30)+.15x=.20(30+x)

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Solution for 30(30)+.15x=.20(30+x) equation:


Simplifying
30(30) + 0.15x = 0.20(30 + x)

Multiply 30 * 30
900 + 0.15x = 0.20(30 + x)
900 + 0.15x = (30 * 0.20 + x * 0.20)
900 + 0.15x = (6 + 0.20x)

Solving
900 + 0.15x = 6 + 0.20x

Solving for variable 'x'.

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

Add '-0.20x' to each side of the equation.
900 + 0.15x + -0.20x = 6 + 0.20x + -0.20x

Combine like terms: 0.15x + -0.20x = -0.05x
900 + -0.05x = 6 + 0.20x + -0.20x

Combine like terms: 0.20x + -0.20x = 0.00
900 + -0.05x = 6 + 0.00
900 + -0.05x = 6

Add '-900' to each side of the equation.
900 + -900 + -0.05x = 6 + -900

Combine like terms: 900 + -900 = 0
0 + -0.05x = 6 + -900
-0.05x = 6 + -900

Combine like terms: 6 + -900 = -894
-0.05x = -894

Divide each side by '-0.05'.
x = 17880

Simplifying
x = 17880

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