What is the answer to 1/5 (1-x)= 1/2 ?

The answer to 1/5 (1-x)= 1/2 is x=-3/2

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1/5 (1-x)= 1/2

\frac{1}{5} (1 - x) = \frac{1}{2}

x = - \frac{3}{2}

Decimal Notation

x = - 1.5

Solution steps

\frac{1}{5} (1 - x) = \frac{1}{2}

Multiply both sides by

5

1 - x = \frac{5}{2}

Move

1

to the right side

- x = \frac{3}{2}

Divide both sides by

- 1

x = - \frac{3}{2}

20 x^{2} - 3 x - 9 = 0

- 4 x^{2} + 52 x = 144

458 (\frac{1}{2})^{\frac{50}{30}}

\frac{480}{5}

25 x^{2} + 20 x + 3