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7x+8y=-18, 4x-9y=-3 solve the system of equations

When the solutions to each of the two equations below are graphed in the xy-coordinate plane, the graphs of the solutions intersect at two places. write the y-cordninates of the points of intersection in the boxes below in order from smallest to largest. y=2x y=x^2-3

When using the linear combination metho e linear combination method to solve a system of linear equations, the four options are: