找到你今天要练的题。

\( 30x=1,800y-3,600 \) 
One of the two equations in a system of linear equations is given. The system has no solution, which equation could be the second equation in this system?

\( 11x-14y=14y+6 \) 
\( hy=3+11x \) 
In the given system of equations, h is a constant. If the system has no solution, what is the value of h?

How many solutions does the equation \( 8x-1=15 \) have? 

\( x^2+18=18+x^2 \) 
How many distinct real solutions does the given equation have?

\( 4x+9y=30 \) 
\( rx+18y=60 \) 
In the given system of equations, \( r \) is a constant. The system has infinitely many solutions. What is the value of ?

\( 38(x−n)=38y+38n \) 
One of the equations in a system of two linear equations is given, where n is a positive constant. The system has no solution. Which equation could be the second equation in this system?

\( 4x-9y=9y+5 \) 
\( hy=2+4x \) 
In the given system of equations, ℎ is a constant. If the system has no solution, what is the value of ℎ?

\( y=6x+18 \) 
One of the equations in a system of two linear equations is given. The system has no solution. Which equation could be the second equation in the system?

\( y=6x+8 \)\( y=6x+18 \) 
One of the equations in a system of two linear equations is given. The system has no solution. Which equation could be the second equation in the system?

\( 2x+3y=7 \) 
\( 10x+15y=35 \) 
For each real number r, which of the following points lies on the graph of each equation in the xy-plane for the given system?

\( 2x+9y=7 \) 
The given equation is one equation in a system of two linear equations. If the system of equations has at least one solution, which of the following equations could be the other equation in the system?
I. \( 3x+13.5y=10.5 \) 
II. \( 3x-13.5y=10.5 \) 

At how many points do the graphs of the equations y = x + 20 and y = 8x intersect in the xy-plane?