find the values of x and y in the following linear equation. `x+y=7; x-y=3`

Find the values of x,y and z from the following matrix equations: {:[(x+y+z),(x+z),(y+z)] = [(11),(7),(9)]

Find the values of a and b for which the following system of linear equations has infinite number of solutions: 2x-3y=7,\ \ \ \ (a+b)x-(a+b-3)y=4a+b

Find the values of a and b for which the following system of linear equations has infinite number of solutions: 2x-3y=7,quad (a+b)x-(a+b-3)y=4a+b

Find the values of x and y from each of the following matrix equation : (i) [{:(x+y),(x-y):}]=[(3)/(1)](ii) [{:(x+y,7),(0,2x):}]=[{:(-1,7),(0,6):}]

Find the values of x and y from each of the following matrix equation : (i) [{:(x+y),(x-y):}]=[(3)/(1)](ii) [{:(x+y,7),(0,2x):}]=[{:(-1,7),(0,6):}]

What are the values of x and y in the system of linear equations 4x + 5y = -3 and 2x - y = 2 ?

Find the value of x and y which satisfy the following equation (x, y in R): If x+2i+15 i^6 y= 7x+ i^3 (y+4), find (x+y)

Find the value of k for which the following system of linear equations : 2x -ky = 1, 3x - 5y = 7 will have :- a unique solution .