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mixer [17]
3 years ago
8

Simplify the expression -3a+5(a-1)-7 and then evaluate the solution to part b if a = -5

Mathematics
2 answers:
Anastaziya [24]3 years ago
7 0
Part 1:
-3a+5(a-1)-7=
-3a+5a-5-7=
2a-11
Part 2:
a=-5
2(-5)-11=
-10-11=
-21
PSYCHO15rus [73]3 years ago
5 0
Just distribute the 5 and then combine like terms 

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