Solve 4x-74x-7 - ScanMath

Question

Simplify the expression

- 70 x - 7

Evaluate

4 x - 74 x - 7

Solution

More Steps

Evaluate

4 x - 74 x

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

(4 - 74) x

Subtract the numbers

- 70 x

- 70 x - 7

Show Solution

- 7 (10 x + 1)

Evaluate

4 x - 74 x - 7

Subtract the terms

More Steps

Evaluate

4 x - 74 x

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

(4 - 74) x

Subtract the numbers

- 70 x

- 70 x - 7

Solution

- 7 (10 x + 1)

Show Solution

x = - \frac{1}{10}

Alternative Form

x = - 0.1

Evaluate

4 x - 74 x - 7

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

4 x - 74 x - 7 = 0

Subtract the terms

More Steps

Simplify

4 x - 74 x

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

(4 - 74) x

Subtract the numbers

- 70 x

- 70 x - 7 = 0

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

- 70 x = 0 + 7

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

- 70 x = 7

Change the signs on both sides of the equation

70 x = - 7

Divide both sides

\frac{70 x}{70} = \frac{- 7}{70}

Divide the numbers

x = \frac{- 7}{70}

Solution

More Steps

Evaluate

\frac{- 7}{70}

Cancel out the common factor 7

\frac{- 1}{10}

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

- \frac{1}{10}

x = - \frac{1}{10}

Alternative Form

x = - 0.1

Show Solution