153,965 views
31 votes
31 votes
Please look at png please be as fast as possible.

Please look at png please be as fast as possible.-example-1
User Makc
by
2.2k points

1 Answer

5 votes
5 votes

To solve the system of equations, follow the steps below.

Step 01: Substitute y by 2x + 11 in the second equation:


\begin{gathered} 3x+2*(2x+11)=8 \\ 3x+2*2x+2*11=8 \\ 3x+4x+22=8 \\ 7x+22=8 \end{gathered}

Subtract 22 from both sides:


\begin{gathered} 7x+22-22=8-22 \\ 7x=-14 \end{gathered}

Dividing both sides by 7:


\begin{gathered} (7x)/(7)=-(14)/(7) \\ x=-2 \end{gathered}

Step 02: Knowing that y = 2x + 11 , find y.


\begin{gathered} y=2x+11 \\ y=2*(-2)+11 \\ y=-4+11 \\ y=7 \end{gathered}

The answer of the system is (-2, 7).

Answer: y = 7.

User Garbagecollector
by
2.7k points