0.1x+0.15(20-x)=0.12(20)

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Solution for 0.1x+0.15(20-x)=0.12(20) equation:


Simplifying
0.1x + 0.15(20 + -1x) = 0.12(20)
0.1x + (20 * 0.15 + -1x * 0.15) = 0.12(20)
0.1x + (3 + -0.15x) = 0.12(20)

Reorder the terms:
3 + 0.1x + -0.15x = 0.12(20)

Combine like terms: 0.1x + -0.15x = -0.05x
3 + -0.05x = 0.12(20)

Multiply 0.12 * 20
3 + -0.05x = 2.4

Solving
3 + -0.05x = 2.4

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + -0.05x = 2.4 + -3

Combine like terms: 3 + -3 = 0
0 + -0.05x = 2.4 + -3
-0.05x = 2.4 + -3

Combine like terms: 2.4 + -3 = -0.6
-0.05x = -0.6

Divide each side by '-0.05'.
x = 12

Simplifying
x = 12

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