Joe concluded that the expression 3x + 15 + 2x is equivalent to the expression 5(x + 3). Which of these best explains how Joe reached his conclusion?

combining like terms and dividing each term by 5

Step-by-step explanation:

3x + 15 + 2x      Given

5x +15               Combine Like Terms

5x = 5 x             Find the LCM

15 = 5 3              LCM is 5

5(x + 3)               Pull the 5 out of both and put the remaining factors in parentheses

hope this helps <3

step-by-step explanation:

ok so im not 100% sure but you would start by adding 5.1t and 1.9t beacuse they have the same variable. that is 7t.   then add -3.6 + 1.2 which is -2.4

so then keep that as -2.4 + 7t. i apologize if this is incorrect. best luck on your test < 3