Solve
0.2x+0.3y = 1.3
0.4x+0.5y = 2.3
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2
Explanation:
multiply both by 10
2x + 3y = 13. (I)
4x + 5y = 23. (ii)
multiply (I) by 2
4x+6y = 26. (iii)
4x + 5y = 23. (iv)
subtract (IV) by (iii)
y = 3
putting the value of y = 3 in (I)
2x + 3y = 23
2x + 3×3 = 23
2x + 9 = 23
2x = 23-9
2x = 14
X = 14/2
X = 7
hence , X = 7 and y = 3
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Answer:
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