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Title: Solve the system of equations: x + y = 2.50.2x - y = 1.2 Post by: gewusel on Nov 26, 2017 Solve the system of equations: x + y = 2.5
0.2x - y = 1.2 Title: Re: Solve the system of equations: x + y = 2.50.2x - y = 1.2 Post by: yacom on Nov 26, 2017 x + y = 2.5
0.2x - y = 1.2 2x + 3y = 5 x - 2y = 6 2x + 3y = 5 2x - 4y = 12 7y = -7 y = -1 x - 2(-1) = 6 x + 2 = 6 x = 4 |