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3 years ago

15 POINTS HELP ME PLEASE!!!

Mathematics

2 answers:

Alexxx [7]3 years ago

6 0

-8a-6-10a-2+5a
-18a-6-2+5a
the answer is -13a-8

second

6x-4+3x+8
9x-4+8
the answer is 9x-4

mars1129 [50]3 years ago

4 0

Answer:

-13a -8

9x+4

Step-by-step explanation:

-8a + (-6)- 10a - 2 + 5a

-8a -10a +5a -6-2

Combine like terms

-18a +5a -8

-13a -8

6x - 4 + 3x + 8

6x+3x -4+8

Combine like terms

9x+4

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3 years ago

Find the perimeter of a regular octagon if one of its sides is x + 6 and another side is 14 – x.

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Step-by-step explanation:

The sides of a regular octagon are all the same length.

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