.1x+.25(20-x)=4.9

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Solution for .1x+.25(20-x)=4.9 equation:


Simplifying
0.1x + 0.25(20 + -1x) = 4.9
0.1x + (20 * 0.25 + -1x * 0.25) = 4.9
0.1x + (5 + -0.25x) = 4.9

Reorder the terms:
5 + 0.1x + -0.25x = 4.9

Combine like terms: 0.1x + -0.25x = -0.15x
5 + -0.15x = 4.9

Solving
5 + -0.15x = 4.9

Solving for variable 'x'.

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

Add '-5' to each side of the equation.
5 + -5 + -0.15x = 4.9 + -5

Combine like terms: 5 + -5 = 0
0 + -0.15x = 4.9 + -5
-0.15x = 4.9 + -5

Combine like terms: 4.9 + -5 = -0.1
-0.15x = -0.1

Divide each side by '-0.15'.
x = 0.6666666667

Simplifying
x = 0.6666666667

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