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Joelynn18 ∙
If: x+8 = 20
Then: x = 12
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y = x +8 where x is the number
If: 2x+8 = 7 then x = -1/2
(x + y)/20
x-7
98 = (9 x 101) + (8 x 100) or (9 x 10) + (8 x 1)