1-x=0.21(2-x)

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Solution for 1-x=0.21(2-x) equation:


Simplifying
1 + -1x = 0.21(2 + -1x)
1 + -1x = (2 * 0.21 + -1x * 0.21)
1 + -1x = (0.42 + -0.21x)

Solving
1 + -1x = 0.42 + -0.21x

Solving for variable 'x'.

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

Add '0.21x' to each side of the equation.
1 + -1x + 0.21x = 0.42 + -0.21x + 0.21x

Combine like terms: -1x + 0.21x = -0.79x
1 + -0.79x = 0.42 + -0.21x + 0.21x

Combine like terms: -0.21x + 0.21x = 0.00
1 + -0.79x = 0.42 + 0.00
1 + -0.79x = 0.42

Add '-1' to each side of the equation.
1 + -1 + -0.79x = 0.42 + -1

Combine like terms: 1 + -1 = 0
0 + -0.79x = 0.42 + -1
-0.79x = 0.42 + -1

Combine like terms: 0.42 + -1 = -0.58
-0.79x = -0.58

Divide each side by '-0.79'.
x = 0.7341772152

Simplifying
x = 0.7341772152

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