Write equations and solve for x and y don't know what to do pls

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1

Given: x + y = 6. if xe (-15, -6, -1), then which of the following sets of ordered pairs are solutions? © {(-15, -21), (-6, -12), (-1, -7)} [(-15, 21), (-6, , 7)} {(-15, 21), (-6, 12), (-1, -7)}

Graph the equation by plotting point x=2