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Sagot :
Answer:
[tex]x=6[/tex]
Step-by-step explanation:
We can set up an equation with the information given:
[tex]6[/tex] · [tex]20+x[/tex] · [tex]10+19[/tex] · [tex]1=199[/tex]
We can simplify that to:
[tex]120+10x+19=199[/tex]
Which is, simplified further:
[tex]139+10x=199[/tex]
If we subtract 139 from both sides of the equation, we will get:
[tex]10x=60[/tex]
Thus, [tex]x=6[/tex].
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