Using elimination (combination), which variable will be eliminated first? 5x-y=-21x+y=-3 a) the variable x will cancel out first. b) the variable y will cancel out first. c) both variables will cancel out first. d) neither.

Option B) The variable Y will cancel out first.

Step-by-step explanation:

we have

5x-y=-21 > equation A

x+y=-3 > equation B

Solve by elimination

Adds equation A and equation B

5x-y=-21

x+y=-3

5x+x=-21-3 >variable y will be eliminated first

6x=-24

x=-4

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step-by-step explanation: