Solve 3x - y = 5; 4x - 3y= -1. Hence find p if y= px - 3
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Step-by-step explanation:
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Answered by
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Answer:
Step-by-step explanation:
3x-y= 5
=> -y = 5-3x
=> y = 3x-5 ---- 1)
4x-3y= -1
=> -3y = -1-4x
=> 3y= 4x+1-----2)
3x-5= 4x+1
=>3x-4x = 1+5
=> -x = 6
=> x= -6
Substituting x=-6 in 1)
y = 3x-5
=> y= -18-5
=> y= -23
Substituting y= -23 in y= px-3
=> -23 = -6p-3 ( as x = -6)
=> -20 = -6p
=> 6p = 20
=> p = 20/6
=> p = 10/3 or 3.33
Thus p= 10/3 or 3.33.
You can verify it it too by substituting the above values.
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