Question

4x-7y=250\5x-9y=50 how to solve for x and y

Answer 1

(4x - 7y = 250 ) x 5

(5x - 9y = 50) x4

20x - 35y = 1250......i

20x - 36y = 200 ......ii

(i) - (ii)

20x - 35y - 20x + 36 y = 1250 - 200

y = 1050

now for x

4x - 7*1050 = 250

x = 1900