<span>m*m+m*7+3*m+3*7
Answer= </span>m^2+10m+21
Answer:
Many situations can do so.
Step-by-step explanation:
Imagine your father gave you $n (n dollars), your mother then gives you $2 dollars. How many dollars do you have now? n+2 dollars.
You have two assignments to complete for this term. Your Physics teacher decides to give you n assignments to do. How many assignments do you need to do to complete the term? n+2 assignments.
On Brainly, you have n points. You answered a Geography question which awarded you 2 points. How many points do you have now? n+2 points.
Hope it helps!
Your sum is 4 times 10, or 40. We want to end up with 40. Subtract 8 because you added 8 before to work backwards. You get 32. Divide by 16 because the opposite of multiplication is division. You would get 2.
2n-4=-12
Add 4 to both sides
2n=-8
Divide by 2 on both sides
n=-4
To do these types of questions do reverse PEMDAS. Do the opposite sign such as adding to undo subtraction.
