Simultaneous Equations

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Question 1
[tex] -2x+y=6[/tex]
[tex] x+y=6[/tex]
Find [tex]x[/tex] and [tex]y[/tex].

Question 2
[tex] 2x+y=8[/tex]
[tex]x+2y=16[/tex]

Find [tex]x-y=?[/tex]

Question 3
What is the solution to the system
[tex]5y-x=10[/tex]
[tex]y-\frac{1}{2}x=5[/tex]

Question 4
[tex] \begin{cases} 2x+3y=1 \\ mx+ny=5 \end{cases} [/tex] doesn't have any solutions. Find [tex]m[/tex] and [tex]n[/tex].

Question 5
[tex]-2x+y=1[/tex]
[tex]x-2y=1[/tex]
Find the solution to the system?

Question 6
[tex] \begin{cases} -10x+my=3 \\ nx+14y=-6 \end{cases} [/tex]
The system have infinite solutions. Find [tex]m[/tex] and [tex]n[/tex].

Question 7
[tex]5x+y=-5[/tex]
[tex]x+4y=-1[/tex]

Find [tex]x+y=?[/tex]

Question 8
Which of the following equations are graphed?
Which of the following equations are graphed?

Question 9
[tex]x=1, y=3[/tex] are the solution to the equations.
[tex] 2mx+ny=5[/tex]
[tex]-mx+ny=2[/tex]

Find [tex]m+n=?[/tex]


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