Answer:
[tex] \boxed{ \tt{1. \: \: 9a + 2b}}[/tex]
[tex] \boxed{ \tt{2. \: \: 2pqr + 3qrs - 3pqr}}[/tex]
Step-by-step explanation:
[tex] \tt{1. \: \: (5a - 6b) + (4a + 8b)}[/tex]
Remove the unnecessary parentheses :
⇾ [tex] \tt{5a - 6b + 4a + 8b}[/tex]
Combine like terms. Like terms are those which have the same base { For instance : In the term 4a , a is the base }. Also remember that : Only coefficients of like terms can be added or subtracted.
⇾ [tex] \tt{5a + 4a - 6b + 8b}[/tex]
⇾ [tex] \tt{9a + 2b}[/tex]
[tex] \tt{2. \: \: pqr + pqr - 2qrs + 5qrs - 3pqr}[/tex]
Combine like terms :
⇾ [tex] \tt{2pqr + 3qrs - 3pqr}[/tex]
Hope I helped ! ♡
Have a wonderful day / night ! ツ
▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁
Answer:
1. (5a-6b) + (4a+8b)
= (5a + 4a) + (8b - 6b)
=9a + 2b
2. pqr+pqr-2qrs+5qrs-3pqr
= 2pqr-3qrs-3pqr
= -3qrs-pqr
Step-by-step explanation:
have a great day
-(-125) = ___
can someone answer this
Answer:
125
Step-by-step explanation:
the minus and negative sign basically cancel each other out and/or combine to make + sign for positive