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For $3 x + y = 7$ and $3 x + 2 y = 11$ , subtracting the first from the second eliminates which variable?

Class 10Elimination MethodAlgebra — Systems of Equations

A $x$
B $y$
Cboth
Dneither

Step-by-Step Solution

Both equations have

3 x

. Subtracting removes the

x

-terms

(3 x - 3 x = 0)

, leaving

y = 4

.

Answer: A)

x

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