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ICSE Class 9 Answered

2x-3Y-13=0;3X+5Y=16 stimulation method
Asked by kumarijanvi242004 | 28 Feb, 2021, 09:04: AM
Expert Answer
2x - 3y = 13    ... (i)
3x + 5y = 16   ... (ii)
Make one of the (x or y) coefficients equal.
Multiplying (i) 5 and (ii) by 3, we get
10x - 15y = 65   ... (iii)
9x + 15y = 48    ... (iv)
Adding the two equations, we get
19x = 113
x = 113/19
Substituting in (i), we get
y = -7/19
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