Question

x-5y=4;2x-y=7 by substitution method

Answer 1

Step-by-step explanation:

from 1st equation

x=4+5y--------------1

substituting in 2nd equation

2(4+5y)-y=7

8+10y-y=7

8+9y=7

9y=-1

y=-1/9

from this value we can get x value

so,

x=4+5(-1/9)

x=4-5/9

thus x=31/9

hope this answer helps u dear

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