Question

on solving 19 X + 17 Y = 55 and 17 X + 19 Y = 53 we get​

Answer 1

Answer:

Step-by-step explanation:

Answer: we use the method of adding and subtracting

19x-17y=55    ---- 1

17x-19y=53     ---2

eq1 + eq2

36x-36y = 108

36(x-y)=108

x-y=3 ---- eq 3

eq1-eq2

2x+2y=2

2(x+y) = 2

x+y = 1   ---eq4

from 3 and 4  by elimination

x-y=3

x+y=1

-------------

2x=4

x=2

x+y=1

y=1-x

y=1-2

y= -1

x-y =1

2-1 = 1

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