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Is the point (4,2) the solution to the system? Why or why not? Explain your reasoning. 2x-y+6 x+y=6 please help me with this :D
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Is the point (4,2) the solution to the system? Why or why not? Explain your reasoning.

2x-y+6
x+y=6

please help me with this :D

Is the point (4,2) the solution to the system? Why or why not? Explain your reasoning-example-1
User Antoniazzi
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1 Answer

3 votes
solve the top equation to get on variable on one side
2x-y=6
-y=-2x+6
y=2x-6
then plug in the coordinate for x and y for both equations. if both equations are true then it’s a solution
2=2(2)+6
2=10

4+2=6

so it’s not a solution
User Thomas McGuire
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4.5k points
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