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Annette [7]
3 years ago
9

I need help on 1,2,3

Mathematics
2 answers:
Degger [83]3 years ago
8 0

Answer:

2. (7x+9y-1)-(5x-2y+6)

7x+9y-1-5x+2y-6

7x+5x+9y+2y-6-

= 12x+11y-7

3. -2(2x+5)-6x-1

-4x-10-6x-1

-4x-6x-10-1

=. -10x-11

That's what I have managed to do.

Thank you.

BY GERALD GREAT

vladimir2022 [97]3 years ago
4 0

Answer:

1. 10x + 14

2. 2x + 11y - 7

3. -10x - 11

Step-by-step explanation:

1.

4x+5+7x-3+x+12=\\10x+14

2.

(7x+9y-1)-(5x-2y+6)=\\7x+9y-1-5x+2y-6=\\2x+11y-7

3.

-2(2x+5)-6x-1=\\-4x-10-6x-1=\\-10x-11

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