206k views
4 votes
Complete the table of values for the equation:y - 2x = 21What is the missing value (?) that belongs in the table below?

Complete the table of values for the equation:y - 2x = 21What is the missing value-example-1

1 Answer

3 votes

Solution:

Given a table of values for the equation below


y-2x=21

To find the missing value, substitute the value of x into the given equation to find the value of y (missing value)

Where, x = -1


\begin{gathered} y-2x=21 \\ y-2(-1)=21 \\ y+2=21 \\ Collect\text{ like terms } \\ y=21-2 \\ y=19 \end{gathered}

Hence, the missing value is 19

User Chris Walsh
by
8.8k points

Related questions

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories