7x 5 8x 7 July 8, 2019 16 32 64 128 7x 2y 5 8x 7y 15 7x 2y 5 8x 7y 15 by elimination method 7x 2y 5 8x 7y 15 solution 7x 2y xy 5 8x 7y xy 15 7x 5 x 7 )= 8x 13 (- 7x 5 9x 2 8x 7 − 7x 5 9x2 8x 7 7x 10 5 8x 5 7 Simplify − 7x 5 9x2 8x 7 Solve 7x 2y 5 and 8x 7y 15 and verify
