(.15)(10-x)+.45x=(.30)(10)

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Solution for (.15)(10-x)+.45x=(.30)(10) equation:


Simplifying
(0.15)(10 + -1x) + 0.45x = (0.30)(10)
(10 * 0.15 + -1x * 0.15) + 0.45x = (0.30)(10)
(1.5 + -0.15x) + 0.45x = (0.30)(10)

Combine like terms: -0.15x + 0.45x = 0.3x
1.5 + 0.3x = (0.30)(10)

Multiply 0.30 * 10
1.5 + 0.3x = 3

Solving
1.5 + 0.3x = 3

Solving for variable 'x'.

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

Add '-1.5' to each side of the equation.
1.5 + -1.5 + 0.3x = 3 + -1.5

Combine like terms: 1.5 + -1.5 = 0.0
0.0 + 0.3x = 3 + -1.5
0.3x = 3 + -1.5

Combine like terms: 3 + -1.5 = 1.5
0.3x = 1.5

Divide each side by '0.3'.
x = 5

Simplifying
x = 5

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