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Rainbow [258]
3 years ago
8

Can someone please help me??

Mathematics
2 answers:
aivan3 [116]3 years ago
4 0

Answer:

-16 is the answer after evaluating

Step-by-step explanation:

{b }^{2}  - 7b - 6 \\ 5 { }^{2}  - 7 \times 5 -6 \\ 25 - 35 - 6 \\ 25 - 41 \\  - 16

Dmitry [639]3 years ago
4 0

Answer:

-16

Step-by-step explanation:

Substitute 'b' for 5

5^{2} - 7(5) - 6

solve

25 - 35 - 6 =

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3 0
3 years ago
The sum of Sally and Beth's age is 60. Six years ago, Sally was 3 times as old as Beth. What are their present ages?
andrew-mc [135]
It's quite simple. Look:

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