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Simultaneous linear equation in two variables, analytical and graphical solutions. Simultaneous linear in equations. Practical problems on linear equations.

If 2x + 3y = 5 and x = - 2, then the value of y is:

Option:
A. 1/3
B. 1
C. 3
D. 9
Answer: C . 3

Justification:

Putting x=-2 in 2x + 3y = 5, we get:
- 4 + 3y = 5 or 3y = 9 or y = 3.

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