For the answer to the question above, 2x + 4y = –7 (1) y = -1/2x + 5 (2) Putting (2) into (1), we have: -2x + 4(-1/2x + 5) = -7 -2x - 2x + 5 = -7 -4x = -7 - 5 = -12 x = -12/-4 = 3 y = -1/2(3) + 5 = -3/2 + 5 = 7/2 Therefore there is only one solution I hoipe my answer helped you. Feel free to ask more questions. Have a nice day!