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cottonkittyslo
cottonkittyslo cottonkittyslo
  • 30-01-2017
  • Mathematics
Answered

Using substitutional method, solve the problem.


x= 4y

2x-y=-1

Verified Answer :

Anonymous Anonymous
  • 30-01-2017

Here, substitute the value of x from equation 1 to equation 2, 
2x - y = -1
2(4y) - y = -1
8y - y = -1
7y = -1
y = -1/7

Now, x = 4(-1/7)
x = -4/7

Hope this helps!

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