0.3(30)+.15x=0.2(30+x)100

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Solution for 0.3(30)+.15x=0.2(30+x)100 equation:


Simplifying
0.3(30) + 0.15x = 0.2(30 + x) * 100

Multiply 0.3 * 30
9 + 0.15x = 0.2(30 + x) * 100

Reorder the terms for easier multiplication:
9 + 0.15x = 0.2 * 100(30 + x)

Multiply 0.2 * 100
9 + 0.15x = 20(30 + x)
9 + 0.15x = (30 * 20 + x * 20)
9 + 0.15x = (600 + 20x)

Solving
9 + 0.15x = 600 + 20x

Solving for variable 'x'.

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

Add '-20x' to each side of the equation.
9 + 0.15x + -20x = 600 + 20x + -20x

Combine like terms: 0.15x + -20x = -19.85x
9 + -19.85x = 600 + 20x + -20x

Combine like terms: 20x + -20x = 0
9 + -19.85x = 600 + 0
9 + -19.85x = 600

Add '-9' to each side of the equation.
9 + -9 + -19.85x = 600 + -9

Combine like terms: 9 + -9 = 0
0 + -19.85x = 600 + -9
-19.85x = 600 + -9

Combine like terms: 600 + -9 = 591
-19.85x = 591

Divide each side by '-19.85'.
x = -29.77329975

Simplifying
x = -29.77329975

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