Question

Simplify the expression by collecting like terms -
7r + 2s + 3t -2r + s + 2t

Answer 1

Step-by-step explanation:

(7r-2r) +(2s+s )+(3t+2t)

5r+3s+5t

Answer 2

Answer: (7r-2r) +(2s+s )+(3t+2t)

5r+3s+5t

Step-by-step explanation: Explanation 7r and 2r are like terms so the same as 3t and 2t are also like terms. 2s and s are also like terms. So you are going to subtract ( 7r -2r) + (2s+s) + ( 3t+2t).

Hopes it helps :)

And are you using Cambridge book???