If `3x+4y=-10 , 4x+3y=3`, then find the value of `x+y`.​

If 3x+4y=12 and 4x+3y=9 , then find the value of x+y

(i) x+2y=-7 and 3x-2y=-1, then find the value of x. (ii) If x+y=8 and 4y-x=2, then find the value of y. (iii) If 3x+5y=9 and 5x+3y=7, then find the value of x+y. (iv) If 3x-y=11 and x-3y=17, then find the value of x-y.

If 4x-5y=37 and 3x-4y=25, then find the value of x-y.

If 3x + 2y = 10 and 2x + 3y = 15, find the value of x + y.

If 3x+2y=10 and 2x+3y=15 , find the value of x+y .

If x^3+y^3=16 and x + y = 4, then find the value of x^4+y^4 . यदि x^3+y^3=16 और x + y = 4 है, तो x^4+y^4 का मान ज्ञात करें

If x=3 and y=4 , find the value of 4x-3y

If x=3 and y=4 , find the value of 3x+2y

If y=3x+1=4[x-1]-10 then find the value of [x+2y]