solve: 4x + 3/y = 18
3x + 2/y = 13
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Answered by
7
Answer:
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Answered by
8
Answer:
X = 3 , Y = 1/2
Step-by-step explanation:
GIVEN - 4x + 3/y =18 - (1)
3x + 2/y = 13 - (2)
by equating the y coefficient,
multiply (1) by 2 and multiply (2) by 3.
8x + 6/y = 36 - (3)
9x + 6/y = 39 - (4)
subtracting equation (3) from (4),
9x + 6/y = 39
-8x - 6/y = 36
""""""""""""""""""
x = 3
"""""""""""""""""""
by substituting x value in (1),
4(3) + 3/y = 18
12 +3/y = 18
3/y = 18-12
3 = 6y
y = 3/6
y = 1/2
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