SOLUTION: If 3x +2y = 7 and kx - y =5 which of the following represents the value of x in terms of k?
A 12 /(3 + 2k)
B 17/(3+2k)
C 12/(3+k)
D 17/(3+k)
E 2/(3+k)
Algebra.Com
Question 310299: If 3x +2y = 7 and kx - y =5 which of the following represents the value of x in terms of k?
A 12 /(3 + 2k)
B 17/(3+2k)
C 12/(3+k)
D 17/(3+k)
E 2/(3+k)
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
1.
2.
From eq. 2,
Substitute this expression for y into eq. 1,
.
.
.
is the correct answer.
RELATED QUESTIONS
what is k if the following system of equations has a unique solution:
2x+(k-1)y=6... (answered by stanbon)
if k is a positive integer, which of the following must represent an even integer that is (answered by sudhanshu_kmr)
I have a problem can you help me
Its about solving for the value of k that makes each... (answered by ewatrrr)
If the average (arithmetic mean) of x and y is k, which of the following is the average... (answered by stanbon,bucky)
if x = -1 and k > 0, which of the following has the greatest value ?
a 2 kx b... (answered by stanbon)
How do I solve this question?
If 2k + 3y = k and 4x =7y, which of the following... (answered by stanbon)
For a proof by induction of the math statement below, identify the correct step for... (answered by stanbon)
The straight line y=mx+c passes through the points (0, k) and (h,2k)
Express m and c... (answered by Alan3354,josgarithmetic,MathLover1)
Find the value(s) of k such that the quadratic (k+1)x^2+2kx+2k=3(kx-1) has roots whose... (answered by thesvw)