Answer:
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Step-by-step explanation:
Answer:
y = 2
The variable is equal to 2
Step-by-step explanation:
9y + 3 = 21
-3 -3
9y = 18
Divide both sides by 9
y = 2
Answer:
Just dont
Step-by-step explanation:
come tlak ea
Answer:
B
Step-by-step explanation:
Replacing <em>f</em>(x) with 21, this is the equation
21=3x+9
First, subtract 9 from each side of the equation to get:
12 = 3x
Next, divide each side by 3 to get:
4 = x
So the answer is B.