Solve the system of linear equations by the method of elimination,find (x,y). $$\left\{ \begin{array} { c }
\frac { 9 } { 4 } x + \frac { 1 } { 4 } y = \frac { - 7 } { 4 } \
9 x + y = - 7
\end{array} \right.$$
A)(4,-43)
B)(a,-7 - 9a)(infinitely many solutions)
C)(2,-25)
D)No solutions
E)(8,-79)

Question

​Solve the system of linear equations by the method of elimination,find (x,y). ​​ $$\left\{ \begin{array} { c } 
\frac { 9 } { 4 } x + \frac { 1 } { 4 } y = \frac { - 7 } { 4 } \
9 x + y = - 7
\end{array} \right.$$ ​
A)​(4,-43)
B)(a,-7 - 9a)​(infinitely many solutions)
C)​(2,-25)
D)​No solutions
E)​(8,-79)

Quizplus · Accepted Answer

The second equation is a multiple of the first, indicating that the system has infinitely many solutions of the form (a, -7 - 9a).

​Solve the System of Linear Equations by the Method of Elimination,find

Solve the System of Linear Equations by the Method of Elimination,find