CBSE Class 10 Answered
Solve the following pairs of Linear equation by substitution method
Asked by Topperlearning User | 08 Aug, 2017, 09:20: AM
Expert Answer
x + 0.5y = 3.5 ...(1)
0.5x + 0.3y = 1.9 ...(2)
From (1), x = 3.5 - 0.5y ....(3)
Putting this value in (2)
0.5(3.5 - 0.5y) + 0.3y = 1.9
1.75 - 0.25y + 0.3 y = 1.9
0.05y = 0.15
y =
now putting y = 3 in (3)
x = 3.5 - (0.5 X 3) = 2
Hence x = 2 and y = 3 is the required solution
Answered by | 08 Aug, 2017, 11:20: AM
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