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Mathematics 17 Online
OpenStudy (anonymous):

Simplify: (5a-6)- (3a-1) a. (8a-5) b. (2a-5) c. (2a-7) d. (8a-7)

jimthompson5910 (jim_thompson5910):

First distribute to go from (5a-6)- (3a-1) to 5a-6- 3a + 1 ***Remember to distribute that negative to everything in the second parenthesis*** Now combine like terms

jimthompson5910 (jim_thompson5910):

So combine 5a and -3a to get what?

OpenStudy (anonymous):

so answer D ?

jimthompson5910 (jim_thompson5910):

no, 5a - 3a is....?

OpenStudy (anonymous):

oh sorry C

jimthompson5910 (jim_thompson5910):

closer, but still not it

OpenStudy (anonymous):

what ?

jimthompson5910 (jim_thompson5910):

C is not the answer

jimthompson5910 (jim_thompson5910):

but you're closer

OpenStudy (anonymous):

ok so then it would be B right ?

jimthompson5910 (jim_thompson5910):

yes, do you see why?

OpenStudy (anonymous):

yes i do now. i wasnt reading my signs right

jimthompson5910 (jim_thompson5910):

5a - 3a = 2a and -6 + 1 = -5 ------------------------------------------------------- So 5a-6- 3a + 1 becomes 2a - 5

jimthompson5910 (jim_thompson5910):

i gotcha

jimthompson5910 (jim_thompson5910):

that's great

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