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trasher [3.6K]
3 years ago
8

If 3x-9 =12then the value of x is:​

Mathematics
2 answers:
luda_lava [24]3 years ago
5 0

Answer:

Hey there!

3x-9=12

3x=21

x=7

Let me know if this helps :)

kvasek [131]3 years ago
5 0

Answer:

<h2>x= 7</h2>

Step-by-step explanation:

3x - 9 = 12 \\ collect \: like \: terms \\ 3x = 12 + 9 \\ 3x = 21 \\ divide \: both \: sides \: by \: 3

\frac{3x}{3}  =  \frac{21}{7}  \\ x = 7

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