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Ede4ka [16]
3 years ago
7

Parallelograms help please !

Mathematics
1 answer:
d1i1m1o1n [39]3 years ago
4 0

Answer:

5) x=10

6) x=7

7) x=3

8) x=12

Step-by-step explanation:

5) 19=2x-1

19+1=2x

20=2x

x=10

6) 3x-6=15

3x=21

x=7

7)10=2x+4

10-4=2x

6=2x

x=3

8) x+3=2x-9

3=x-9

x=12

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