Question

If 3x+ 2y = 18; 2x + 3y = 17 then what
is the value of x + y ?​

Answer 1

Step-by-step explanation:

x=4 and y=3

Step-by-step explanation:

Given : Equation and

To find : Solve the system of equation by method of cross multiplication?

Solution :

Let Coefficient of x - A

Coefficient of y - B

Constant term - C

Method of cross multiplication is

x y -1

B C C A A B

3 -17 -17 2 2 3

-2 -6 -6 3 3 -2

Cross multiply,

x y -1

(-18-(34)) (-51-(-12)) (-4-9)

(-52) (39) (-13)

Comparing x , i.e.

Comparing y , i.e.

Therefore, The value of x is 4 and the value of y is 3