Step-by-step explanation:
3n+4n=-14
now add 3n and 4n
7n = -14
divide both by 7
n = -2
So,
5y*3 is the open phrase the student uses to model "the sum of 5y and 3".
"The sum of" means addition. The student put 5y*3, while the sum of 5y and 3 is actually 5y + 3.
Answer:
By 3.
Step-by-step explanation:
-12-3=-15
Hope this helps!
Divide the k own number by the percentage:
66 / 0.75 = 88
66 is 75% of 88
