CameraIcon

CameraIcon

SearchIcon

MyQuestionIcon

MyQuestionIcon

Addition and Subtraction of Algebraic Equations

Find the valu...

Question

Find the value of a form the equation 5x-7y+6a=0 if its one solution is x=2,y=1.

Open in App

Solution

5x-7y+6a=0 one solution is x=2,y=1.

Substitute for x and y
5X2-7X1+6a=0

10-7+6a=0

3+6a=0

a=-3/6=-1/2

Suggest Corrections

thumbs-up

0

BNAT

mid-banner-image

Similar questions

Q. If x = 3, y = 2 is a solution of the equation 5x - 7y = k, find the value of k and write the resultant equation.

Q. If the equation

x^{2} + k x y + y^{2} - 5 x - 7 y + 6 = 0

represents a pair of straight lines, then value of

k

Q. Find the value of

k

x = 3

y = 2

is a solution of the equation

5 x + 3 y - k = 0

.

Q. Find the value of k for which the following system of equations has a unique solution:

5 x - 7 y - 5 = 0 2 x + k y - 1 = 0

Q. Find the value of k so that the following equations may represent pairs of straight lines :

x^{2} + \frac{1}{2} x y + y^{2} - 5 x - 7 y + k + 0

View More

Explore more

Addition and Subtraction of Algebraic Equations

Standard IX Mathematics