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3 years ago

If 3x +15 = 21, then what is the value of x + 5?

Mathematics

2 answers:

denis-greek [22]3 years ago

6 0

X=2 is the answer xxxxxzx

valentinak56 [21]3 years ago

5 0

Answer:

x+5=7

Step-by-step explanation:

3x+15=21

-15 both sides

3x=6

divide by 3

x=2

2+5=7

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see the attached figure to better understand the problem

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