carleym19
Answered

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15 points!!

15 Points class=

Sagot :

Answer:

1 2/7

Step-by-step explanation:

7x9=63

(7x10)-(7xa)=63

70-(7*a)=63

70-63=7*a

9=7*a

9/7=a

a=1 2/7

Hope this helps!

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