2y+16=10x4x−Ly=8−xIn the system of equations, L is a constant. For what value of L does the system of linear equations have infinitely many solutions?
Q. 2y+16=10x4x−Ly=8−xIn the system of equations, L is a constant. For what value of L does the system of linear equations have infinitely many solutions?
Write Equations: First, let's write down the system of equations:{2y+16=10x4x−Ly=8−xTo have infinitely many solutions, the two equations must be dependent, meaning one is a multiple of the other.
Solve for y: Let's solve the first equation for y to get it in the form y=mx+b, where m is the slope and b is the y-intercept.2y=10x−16y=5x−8
Express Second Equation: Now, let's express the second equation in terms of y as well:4x−Ly=8−xLy=4x−8+xLy=5x−8
Check Coefficients: For the system to have infinitely many solutions, the equations must represent the same line. Therefore, the coefficients of x and the constants must be the same in both equations. From the first equation, we have the coefficient of x as 5 and the constant as −8. From the second equation, we have the coefficient of x as 5 (which matches) and the constant as −8 (which also matches). The coefficient of y in the second equation must be 1 for the equations to be the same, since in the first equation, the coefficient of y is implicitly 1.L=1
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