2x
(vii)
w/
18
(ix) 3p - 7 = 0
(xi) 200 - 51 = 49
(xiii) 7x-9 = 16
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3
Sorry! but I couldn't understand your begining questions
answer:
(ix) 3p -7=0
3p=0+7
p = 7/3
xii) 7x-9=16
7x=16+9
7x=21
x=21/7
x=3
Hope it helps!☺️
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