Question

1. Solve the pair of equations by substitution method
7x - 15y = 2
x + 2y = 3​

Answer 1

Answer:

Step-by-step explanation:

7x-15y=2. .......《1》

x+2y=3. ........《2》

From 《1》 i get x = [2+15y]/7

Substituting the value of x in eq.《2》

[2+15y]/7 + 2y =3

2+ 15y+14y = 21

2 +29y = 21

29y = 19

y = 19/29

Putting y = 19/29 in eq 《2》

x+2×19/29 = 3

x+38/29 = 3

x = 3×29/38

x = 87/ 38

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