4x+3y -------- при x= -3/4; y= 1/6 4x-3y

Question

4x+3y
-------- при x= -3/4; y= 1/6
4x-3y

Answer 1

4х+3у= 4*(-3/4)+3*(1/6)= (-3)+1/2= -2,5
4x-3y=4*(-3/4)-3*1/6= (-3) - 1/2=-3,5