3х – 9 = 12 please solve this question
Answers
Answered by
1
Answer:
X=7
Step-by-step explanation:
3x-9=12
3x=12+9
3x=21
X=21/3
X=7
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Answered by
0
Answer:
x=7
Step-by-step explanation:
=3x-9+9=12+9
=3x=12+9
=3x=21
=x=21/3
=x=7
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