How to solve 21=3x+3y
1 answer:
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Answer:
c.
Step-by-step explanation:
The x-1 is there because you can see that the starting point is 1 left from the y axis, and +4 because it starts four points above the x axis.
Answer:
c.
Step-by-step explanation:
The x-1 is there because you can see that the starting point is 1 left from the y axis, and +4 because it starts four points above the x axis.