Question

solve the following pair of linear equation
x/15 + y/10 =8,
x/12 - y/5 +3 =0

no span,other wise will be reported​

Answer 1

Answer:

x/15 + y/10 = 8

or, (2x + 3y)/30 = 8

or, 2x + 3y = 240 ----- (i)

x/12 - y/5 + 3 = 0

or, (5x - 12y)/60 = -3

or, 12y - 5x = 180 ----- (ii)

(i)*5 and (ii)*2

10x + 15y = 1200 ----- (iii)

24y - 10x = 360 ----- (iv)

(iii) + (iv)

39y = 1560

or, y = 40. x = (240-120)/2 = 60