20=13(x)+5(1-x)

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Solution for 20=13(x)+5(1-x) equation:


Simplifying
20 = 13(x) + 5(1 + -1x)
20 = 13x + (1 * 5 + -1x * 5)
20 = 13x + (5 + -5x)

Reorder the terms:
20 = 5 + 13x + -5x

Combine like terms: 13x + -5x = 8x
20 = 5 + 8x

Solving
20 = 5 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
20 + -8x = 5 + 8x + -8x

Combine like terms: 8x + -8x = 0
20 + -8x = 5 + 0
20 + -8x = 5

Add '-20' to each side of the equation.
20 + -20 + -8x = 5 + -20

Combine like terms: 20 + -20 = 0
0 + -8x = 5 + -20
-8x = 5 + -20

Combine like terms: 5 + -20 = -15
-8x = -15

Divide each side by '-8'.
x = 1.875

Simplifying
x = 1.875

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