0.05x+0.1(2X)+0.25(100-3x)=20

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Solution for 0.05x+0.1(2X)+0.25(100-3x)=20 equation: 


Simplifying
0.05x + 0.1(2X) + 0.25(100 + -3x) = 20

Remove parenthesis around (2X)
0.05x + 0.1 * 2X + 0.25(100 + -3x) = 20

Multiply 0.1 * 2
0.05x + 0.2X + 0.25(100 + -3x) = 20
0.05x + 0.2X + (100 * 0.25 + -3x * 0.25) = 20
0.05x + 0.2X + (25 + -0.75x) = 20

Reorder the terms:
25 + 0.2X + 0.05x + -0.75x = 20

Combine like terms: 0.05x + -0.75x = -0.7x
25 + 0.2X + -0.7x = 20

Solving
25 + 0.2X + -0.7x = 20

Solving for variable 'X'.

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

Add '-25' to each side of the equation.
25 + 0.2X + -25 + -0.7x = 20 + -25

Reorder the terms:
25 + -25 + 0.2X + -0.7x = 20 + -25

Combine like terms: 25 + -25 = 0
0 + 0.2X + -0.7x = 20 + -25
0.2X + -0.7x = 20 + -25

Combine like terms: 20 + -25 = -5
0.2X + -0.7x = -5

Add '0.7x' to each side of the equation.
0.2X + -0.7x + 0.7x = -5 + 0.7x

Combine like terms: -0.7x + 0.7x = 0.0
0.2X + 0.0 = -5 + 0.7x
0.2X = -5 + 0.7x

Divide each side by '0.2'.
X = -25 + 3.5x

Simplifying
X = -25 + 3.5x

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