5272道题目5525 条题源记录 · 相同内容已合并
二元一次方程组求解进阶
\( x+4y=-3 \)
\( 4x-y=22 \)
The solution to the given system of equations is \( (x,\ y) \). What is the value of \( 3x−5y \)?
原库参考解析
二元一次方程组求解基础
The graph of a system of a linear equation and a nonlinear equation is shown. What is the solution \( (x,\ y) \) to this system?
原库参考解析
二元一次方程组求解进阶
\( x+6y=28 \)
\( 6y=14 \)
The solution to the given system of equations is \( (x,\ y) \). What is the value of \( x \)?
原库参考解析
二元一次方程组求解挑战
The table shows values of x and their corresponding values of y for three points on line j in the xy-plane.
Line k also lies in the xy-plane and is defined by the equation \( y=4x \). At what point \( (x,\ y) \) do lines j and k intersect?
原库参考解析
二元一次方程组求解挑战
\( x+2y=28 \)
\( 2y=15 \)
The solution to the given system of equations is \( (x,\ y) \). What is the value of x?
原库参考解析
二元一次方程组求解进阶
\( 7(5x)+9(8y)=189 \)
\( 7(5x)-9(8y)=-819 \)
The solution to the given system of equations is \( (x,\ y) \). What is the value of\( 5x+8y \)?
原库参考解析
二元一次方程组求解挑战
\( 8x-7y=5 \)
\( 4x+y=8 \)
The solution to the given system of equations is \( (x,\ y) \). What is the value of \( x+y \)?
原库参考解析
二元一次方程组求解进阶
\( 50x+49y=c \)
\( 49x-50y=c \)
In the given system of equations, c is a positive constant. Which of the following could be the point where the graphs of the equations in this system intersect in the xy-plane?
原库参考解析
二元一次方程组求解挑战
\( 2x+5y=260 \)
\( -2x+3y=260 \)
The solution to the system is \( (x,\ y) \). What is the value of \( 8y \)?
原库参考解析
二元一次方程组求解进阶
\( y=17 \)
\( y-x=0 \)
Which of the following points (x, y) represents the solution to the given system of equations in the xy-plane?
原库参考解析
二元一次方程组求解挑战
\( 4(x-2)=8(y+6) \)
\( 3x-7y=0 \)
The solution to the system is \( (x,\ y) \). What is the value of \( x−y \)?
原库参考解析
二元一次方程组求解进阶
\( 5x+6y=180 \)
\( -5x+3y=180 \)
The solution to the system is \( (x,\ y) \). What is the value of \( 9y \)?
原库参考解析
