asked 191k views
4 votes
Which of these shows the result of using the first equation to substitute for y?

Which of these shows the result of using the first equation to substitute for y?-example-1

1 Answer

3 votes

D) 9x=18

Step-by-step explanation

given


\begin{gathered} y=3x\Rightarrow equation(1) \\ 3x+2y=18\Rightarrow equation(2) \end{gathered}

Step 1

substitute the y value from equation (1) into equation(2)

so


\begin{gathered} 3x+2y=18\operatorname{\Rightarrow}equat\imaginaryI on(2) \\ replace \\ 3x+2(3x)=18 \\ 3x+6x=18 \\ add\text{ like terms } \\ 9x=18 \end{gathered}

therefore, the answer is

D) 9x=18

I hope this helps you

answered
User Binwiederhier
by
7.8k points

No related questions found

Welcome to Qamnty — a place to ask, share, and grow together. Join our community and get real answers from real people.