3 2 7 x 5 2 9 July 8, 2019 16 32 64 128 3/2x + 5/3y = 7 9x - 10y = 14 Multiply 2 3 x 2 4 7 x 5 9 2 7 x 9 3 6 5 x 8 2 5 x 7 = 35 3 7+2 9