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Two times a number plus three times another number number equals 13.
The sum of the two numbers is 7 . What are the numbers

Sagot :

luana
[tex]x-\ first\ number\\y-\ second \ number\\\\ 2x+3y=13\\ x+y=7\ \ -->\ \ x=7-y\\\\ 2(7-y)+3y=13\\ 14-2y+3y=13\\ 14+y=13\\ y=-1\\ x=7+1=8\\\\ Numbers\ are\ -1\ and\ 8.[/tex]
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