What does x stand for in the equation 3x = 21 ?

1 answer:

5 0

Answer:

Step-by-step explanation:

What times 3 = 21 . 7 x 3 = 21 therefore 7 is the x

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CaHeK987 [17]

Answer:

Axis of Symmetry: x = 3

Vertex: (3, 5)

Step-by-step explanation:

Use a graphing calc.

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3 years ago

tester [92]

It has to be A I’m sorry if I’m wrong

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liberstina [14]

Answer:

I think it's 4 and why do I have to write 20 letters?

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Karolina [17]

Answer:

5x+y=12

Step-by-step explanation:

10x+2y=-2=5x+y=12

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Alex73 [517]

-6 x 5 = -30
-6 + 5 = -1

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2 years ago