Solve b-13 b-20 - ScanMath

Question

Simplify the expression

- 12 b - 20

Evaluate

b - 13 b - 20

Solution

More Steps

Evaluate

b - 13 b

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

(1 - 13) b

Subtract the numbers

- 12 b

- 12 b - 20

Show Solution

- 4 (3 b + 5)

Evaluate

b - 13 b - 20

Subtract the terms

More Steps

Evaluate

b - 13 b

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

(1 - 13) b

Subtract the numbers

- 12 b

- 12 b - 20

Solution

- 4 (3 b + 5)

Show Solution

b = - \frac{5}{3}

Alternative Form

b = - 1. \dot{6}

Evaluate

b - 13 b - 20

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

b - 13 b - 20 = 0

Subtract the terms

More Steps

Simplify

b - 13 b

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

(1 - 13) b

Subtract the numbers

- 12 b

- 12 b - 20 = 0

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

- 12 b = 0 + 20

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

- 12 b = 20

Change the signs on both sides of the equation

12 b = - 20

Divide both sides

\frac{12 b}{12} = \frac{- 20}{12}

Divide the numbers

b = \frac{- 20}{12}

Solution

More Steps

Evaluate

\frac{- 20}{12}

Cancel out the common factor 4

\frac{- 5}{3}

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

- \frac{5}{3}

b = - \frac{5}{3}

Alternative Form

b = - 1. \dot{6}

Show Solution