Question

Which expression is equivalent to 6w + 5 - 3w + 7

A. 9w + 2
B. 3w + 12
C. 11w - 4
D. 11w + 4

Hint: It's not A, or B​

Answer 1

ik it’s answered, but it’s b

6w+5-3w+7

6w - 3w = 3w

5 +7=12

this means 3w+12

Answer 2

the answer is B

Explanation:

6w + 5 - 3w + 7

i) collect like terms

= 6w - 3w + 5 + 7

= 3w + 5 + 7

ii) add the numbers

= 3 w + 5 + 7

= 3w + 12