Answer:X+9=11
9-9|11-9
X=2
Step-by-step explanation:When the beginning number is unknown we use “x” to be a place holder. If she got 9 more books we would add 9 to the equation. Finally if 11 is the total, the end of the equation would equal 11.
Answer:
she earned $60.75 each day
x = -12
Step-by-step explanation:
Answer: 250 years
12/3=4
4 x $1 = $4 per year
$1000/4=250
250 years
