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- 4 x + 9 = 21 x=___ help

- 4 x + 9 = 21 x=___ help
213k views
12 votes
- 4 x + 9 = 21 x=___ help

User Gnadelwartz
by
8.9k points

2 Answers

5 votes

Answer:


- 4x + 9 = 21 \\ - 4x = 21 - 9 \\ = 12 \\ x = (12)/( - 4) \\ x = - 3

User Atul KS
by
8.6k points
4 votes
x=-3
because
-4x=21-9
-4x= 12 divide both sides
x=-3
User Agus Sanjaya
by
7.7k points
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