5272道题目5525 条题源记录 · 相同内容已合并
方程组与方程解的个数进阶
How many solutions does the equation \( 35x−25=5(7x−5) \) have?
原库参考解析
方程组与方程解的个数挑战
\( y=4x+36 \)
One of the two equations in a system of linear equations is given. The system has infinitely many solutions. Which equation could be the second equation in this system?
原库参考解析
方程组与方程解的个数挑战
\( x-4y=-16 \)
\( 4x-16y=0 \) \( 3x-12y=48 \)
The given system of equations is graphed in the xy-plane. How many solutions\( (x,\ y) \) does the system of equations have?
原库参考解析
方程组与方程解的个数挑战
\( \frac{8cx+7}{5}=4x-7 \)
In the given equation, c is a constant. If the equation has no solution, what is the value of c ?
原库参考解析
方程组与方程解的个数挑战
\( y=5x+18 \)
\( y=5x-18 \)
How many solutions does the given system of equations have?
原库参考解析
方程组与方程解的个数进阶
\( 5x+8y=30 \)
\( rx+24y=90 \)
In the given system of equations, r is a constant. The system has infinitely many solutions. What is the value of r?
原库参考解析
方程组与方程解的个数挑战
\( -3x+24px=96 \)
In the given equation, p is a constant. The equation has no solution. What is the value of p?
原库参考解析
方程组与方程解的个数挑战
How many solutions does the equation \( 10(x+15)+5x=15(x+10) \) have?
参考答案
方程组与方程解的个数挑战
\( a(9−x)=36−4x \)
In the given equation, a is a constant. The equation has exactly one solution. Which of the following CANNOT be the value of a?
参考答案
方程组与方程解的个数挑战
\( 2x+5y=7 \)
\( 8x+20y=28 \)
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?
参考答案
方程组与方程解的个数挑战
How many solutions does the equation \( 7x+3x+12=10x+5+7 \) have?
参考答案
方程组与方程解的个数挑战
\( 18(x+5)=2(x+c)+16x \)
In the given equation, c is a constant. The equation has infinitely many solutions. What is the value of c?
In the given equation, c is a constant. The equation has infinitely many solutions. What is the value of c?
参考答案
