3 years ago

If 3x + 6 = 21, what does x + 2x plus 2 equal?

Mathematics

1 answer:

Alex777 [14]3 years ago

3 0

Answer:

x+2x+2=17

Step-by-step explanation:

I'm assuming that's what you're asking, so here is the answer explanation.

3x+6=21

3x=15

Hence, x=5

Apply x=5 to x+2x=2

5+10+2

=17

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