Solve x-22x-3 - ScanMath

Question

Simplify the expression

- 21 x - 3

Evaluate

x - 22 x - 3

Solution

More Steps

Evaluate

x - 22 x

Collect like terms by calculating the sum or difference of their coefficients

(1 - 22) x

Subtract the numbers

- 21 x

- 21 x - 3

Show Solution

- 3 (7 x + 1)

Evaluate

x - 22 x - 3

Subtract the terms

More Steps

Evaluate

x - 22 x

Collect like terms by calculating the sum or difference of their coefficients

(1 - 22) x

Subtract the numbers

- 21 x

- 21 x - 3

Solution

- 3 (7 x + 1)

Show Solution

x = - \frac{1}{7}

Alternative Form

x = - 0. \dot{1} 4285 \dot{7}

Evaluate

x - 22 x - 3

To find the roots of the expression,set the expression equal to 0

x - 22 x - 3 = 0

Subtract the terms

More Steps

Simplify

x - 22 x

Collect like terms by calculating the sum or difference of their coefficients

(1 - 22) x

Subtract the numbers

- 21 x

- 21 x - 3 = 0

Move the constant to the right-hand side and change its sign

- 21 x = 0 + 3

Removing 0 doesn't change the value,so remove it from the expression

- 21 x = 3

Change the signs on both sides of the equation

21 x = - 3

Divide both sides

\frac{21 x}{21} = \frac{- 3}{21}

Divide the numbers

x = \frac{- 3}{21}

Solution

More Steps

Evaluate

\frac{- 3}{21}

Cancel out the common factor 3

\frac{- 1}{7}

Use \frac{- a}{b} = \frac{a}{- b} = - \frac{a}{b} to rewrite the fraction

- \frac{1}{7}

x = - \frac{1}{7}

Alternative Form

x = - 0. \dot{1} 4285 \dot{7}

Show Solution