Answer:
✾ [tex] \large{ \tt{EXPLANATION}} : [/tex]
Q. What do you mean by like terms and unlike terms?
⇢ Like terms are those which have the same base whereas unlike terms are those which have the different base [ For eg : In 6p , 3r , 4p & 4r , 6p and 4p are like terms as they have the same base i.e p & 3r and 4r are like terms as they have the same base i.e r ] . Like terms can be added or subtracted as per the signs given and unlike terms are kept as they are. Only coefficient of like terms can be added or subtracted.
[tex] \large{ ✶ \: \bf{6f - 1 + 7f - 8}}[/tex]
[tex] \large{ \bf{↬ \: -1 - 8 + 6f + 7f}}[/tex]
[tex] \boxed{\large{ \bf{↬- 9 + 13 f}}}[/tex]
[tex] \boxed{ \boxed{ \large{ \tt{↭ \: OUR \: FINAL \:ANSWER : \boxed{ \underline{ \underline{ \tt{-9 + 13f }}}}}}}}[/tex]
[tex] \large{ \tt{ \: SIGN \: RULES \: OF \: ADDITION \: AND \: SUBTRACTION}} : [/tex]
- The positive integers are always added and possess the positive ( + ) sign. For example : ( +2 ) + ( + 3 ) = + 5
- The negative integers are always added but possess the negative ( - ) sign . For example : ( - 5 ) + ( - 2 ) = - 7
- The negative and positive integers are always subtracted but possess the sign of the bigger integer. For example : ( + 7 ) + ( - 3 ) = 4
✺ [tex] \large{ \tt{STUDY \: TIP}} : [/tex]
- When writing , studying or reading , listen to music with no vocals. It will allow you to concentrate better. ♪
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