Find the expression that has to be added to the sum of 6m +9n -8 and -3m + 4n to get 5n -12
Answers
Answered by
2
Answer:
3m+8n+4
Step-by-step explanation:
6m+9n-8+(-3m+4n)
=3m+13n-8-(5n-12)
=3m+8n+4
Similar questions