Respuesta :

Answer:

x=12

Step-by-step explanation: Since you are multiplying the bases and they are both 12 you can simply add the exponents together and keep the base the same (This is the law of exponents).

x^9=12^2*12^7 add exponents

x^9=12^9

Since X and 12 have the same exponents, the exponents cancel each other out making x=12

theresa88

Answer: first one

remember

a/b=c/d also can be written as

ad=bc

so

first one can be rewritten as

3x=96

divide both sides by 3

x=32

2nd ones we can just times both sides by 5 to get

x=50/12

3rd one we times 12 both sides to get

x=8

4th one we translate to

4x=63

divide by 4

x=63/4

5th one we translate to

99=5x

divide by 5

99/5=x

6th one we times 21 both sides

6=x

7th one we times both sides by 16

14=x

last one we translate to

45=3x

divide 3

15=x

Step-by-step explanation:

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