Solve the system of equations.
7 + y = (6/5)x 9x  5y = 40
7 + y = (6/5)x
9x  5y = 40 35 + 5y = 6x {multiplied first equation by 5} 6x + 5y = 35 {subtracted 6x and added 35 to each side of new first equation} 6x + 5y = 35 {new first equation} 9x  5y = 40 {second equation} ——————— 15x = 75 {added the two equations} x = 5 {divided each side by 15} 9x  5y = 40 9(5)  5y = 40 {substituted 5, in for x, into second equation} 45  5y = 40 {multiplied 9 by 5} 5y = 5 {subtracted 45 from each side} y = 1 {divided each side by 5} x = 5 and y = 1 Ask the House
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January 2021
