Answer:
1
Step-by-step explanation:
Answer:
2x + 3 = 9
Step-by-step explanation:
Three more than twice a number is nine
Twice a number would be 2x
where x is the number
Three more would be + 3
And is means equal sign or “=“
Answer:
D.
Step-by-step explanation:
my quiz said so
Answer:
-3
Step-by-step explanation:
f(x) = x2 – 4
replace x with -1
f(-1) = (-1)^2 – 4
= -3
Answer:
6
Step-by-step explanation:
7+2x where x is DVDs borrowed
7+2x=19
2x=12
x=6
6 DVDs borrowed for the same price