Find `y` when `3x+10y=5` and `x=2`

Find x and y when x+y=5 and 2x-3y=4

Find the value of the following. 3x-5y when x = 5 and y = 2

If y = 3x^(2) + 5x + 3 , then find Delta y and dy , when x = 3 and Delta x = 0.02

Find the values of x and y when x+y=[[1,2],[4,5]] and x-y=[[3,5],[1,2]]

Find 2x(x-3y)+2y^2 when x=-6 and y=3

If x varies inversely as y and y = 60 when x = 1.5. Find x. when y = 4.5.

If y=x^(2)+3x+6 then find Delta y and dy when x=10, Delta x=0.1.

If y=x^2+3x+6 then find triangley and dy when x=10, trianglex=0.01 .

Find y_2 , when: y=x/(2x-3)

Evaluate : (x^(1//3)+y^(1//3))(x^(2//3)-x^(1//3)y^(1//3)+y^(2//3)) , when x=4(5)/(7) " and " y=5(2)/(7) .