Question

what is the formula of x+642=8x+19​

Answer 1

Answer:

89

Step-by-step explanation:

x - 8x =19-642

7x= 623

x=623/7

x=89

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Answer 2

Answer:

I didn't properly understood the question but it's you are asking for the solution;

x+642=8x+19

642-19=8x-x

623=7x

x=623/7

x=89.