Solve for x and y: 4x + 9y = 72 6x +
15y = 90
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Answered by
1
Answer:
given,
4x+9y=72,---->eqn1
6x+15y=90,
=>2x+5y=30,
=>4x+10y=60,
=>4x=60-10y,----->eqn2
substitute eqn 2 in eqn 1,
60-10y+9y=72,
=>y=-12,x=45.
Hope it helps u...
Answered by
11
- find the value of x and y.....?
»★ multiplying Eq. (i) by 6 and Eq. (ii) by 4 , we get.
»★ Subtracting Eq. (iii) from Eq. (iv).
»★ Now, putting the value y in Eq. (i)
»★ Hence,
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