First correct answer gets brainliest : 3 pwease meh

This is different from the first one can someone me

Select the correct answer from the drop-down menu. subtracting 3xy^2 from 8xy^2 gives the same result as the expression. [tex]3xy ^{2} - 8xy ^{2} [/tex][tex] { - 7xy}^{2} - {2xy}^{2} [/tex][tex] {7xy}^{2} - {2xy}^{2} [/tex]

Use the elimination method to solve the systems of equations. choose the correct ordered pair. 7x+4y=39