Hey there!
“3(a+b)+15-a+2b”
First DISTRIBUTE
3(a) + 3(b) + 15 - a + 2b
3(a) = 3a
3(b) = 3b
New EQUATION
3a + 3b + 15 - a + 2b
COMBINE your LIKE TERMS
(3a - a) + (3b + 2b) + (15)
~NOTE: “a” is understood as an invisible 1!~
(3a - 1a) = 2a
(3b + 2b) = 5b
(15) = 15
Therefore, your answer is: 2a + 5b + 15 ☑️
Good luck on your assignment and enjoy your day!
~LoveYourselfFirst:)
