30 POINTS!!!!!! What is the solution for the system of equations? Use the substitution method to solve. 2x+y=20 −5y=−6x+12 Enter your answer in the boxes.PLEASE HURRY!!!!!!!!
Accepted Solution
A:
Solve for yy in 2x+y=202x+y=20How? y=20-2xy=20−2x Substitute y=20-2xy=20−2x into -5y=-6x+12−5y=−6x+12How? -5(20-2x)=-6x+12−5(20−2x)=−6x+12
Solve for xx in -5(20-2x)=-6x+12−5(20−2x)=−6x+12How? x=7x=7
Substitute x=7x=7 into y=20-2xy=20−2xHow? y=6y=6 Therefore, x=7x=7 y=6y=6