2m+3+4m+5 advice and correct solution

Hey there!

On this problem, we have to combine like terms. A like term in this sense doesn't have to have the same coefficient, but it has to have the same variable.

Our like terms are 2m and 4m, along with 3 and 5.

When we add 2m and 4m we get 6m, and when we add 5 and 3 we get eight.
Notice how 5 and three are like terms because they're both whole numbers and don't have any variables.

Your solution is 6m + 8.

My advice to you is pay attention to your like terms and don't mix them up. A strategy is to underline like terms in the same color.

Hope this helps!

First, find the amount of pennies in each stack, which is ten as the problem says. Next, multiply the number of stacks by the number of pennies in each stack (50 x 10). That will be your answer. Hope this helps!