-.1(30)+.3x=.05(x-20)

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Solution for -.1(30)+.3x=.05(x-20) equation:


Simplifying
-0.1(30) + 0.3x = 0.05(x + -20)

Multiply -0.1 * 30
-3 + 0.3x = 0.05(x + -20)

Reorder the terms:
-3 + 0.3x = 0.05(-20 + x)
-3 + 0.3x = (-20 * 0.05 + x * 0.05)
-3 + 0.3x = (-1 + 0.05x)

Solving
-3 + 0.3x = -1 + 0.05x

Solving for variable 'x'.

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

Add '-0.05x' to each side of the equation.
-3 + 0.3x + -0.05x = -1 + 0.05x + -0.05x

Combine like terms: 0.3x + -0.05x = 0.25x
-3 + 0.25x = -1 + 0.05x + -0.05x

Combine like terms: 0.05x + -0.05x = 0.00
-3 + 0.25x = -1 + 0.00
-3 + 0.25x = -1

Add '3' to each side of the equation.
-3 + 3 + 0.25x = -1 + 3

Combine like terms: -3 + 3 = 0
0 + 0.25x = -1 + 3
0.25x = -1 + 3

Combine like terms: -1 + 3 = 2
0.25x = 2

Divide each side by '0.25'.
x = 8

Simplifying
x = 8

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