Question

For what value of k, do the equations
3x - y +8= 0 and 6x - ky + 16 = 0 represent
coincident lines?
29x + (a + b)y = 28 has infinitely many
solutions, then what is the relationship
between a and b?
15 students of class XII took part in
Mathematics quiz. If the number of girls is 5
more than the number of boys. Represent
this situation algebraically.
For what value of k, the following pair of
linear equations has infinitely many solution?
10x + 5y - (k-5) = 0
20x + 10y - k=0
7.
What is the general formula of a pair of linear
equation in two variables x and y.
Find the value of a and b for the system of
equations 2x + 3y = 7 and (a + b)x + (2a -b)
y= 21 has infinitely many solutions.
.
If a pair of linear equations in two variables
is consistant, then what type of lines are
represented by this pair of equations?
Obtain the condition for the following system
of linear equation to have a unique solution
ax + by = 0
Ix + my = x
5.
If the system of equations 2x + 3y = 7 and​

Answer 1

see the answer in picture