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The lines $x + 2 y = 8$ and $2 x + y = 7$ intersect at a single point.
Using elimination, find the $y$ -coordinate of that point of intersection.

Class 10Elimination MethodAlgebra — Systems of Equations

A4
B3
C2
D6

Step-by-Step Solution

Multiply first by 2:

2 x + 4 y = 16

. Subtract second

(2 x + y = 7) : 3 y = 9

, so

y = 3

.

Answer: B) 3

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