document.write( "Question 56829: I am struggling with this word problem, I would like some help on how to complete these type of problems. Here is the problem: If 4 times an interger is increased by 3, the result is between 13 and 25. What is the interger? Please help me. Thank you \n" ); document.write( "
Algebra.Com's Answer #38574 by checkley71(8403)\"\" \"About 
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(4x+3)>=13 & <=25
\n" ); document.write( "4x+3=13
\n" ); document.write( "4x=13-3
\n" ); document.write( "4x=10
\n" ); document.write( "x=10/4
\n" ); document.write( "x=2.5 (3)
\n" ); document.write( "4x+3=25
\n" ); document.write( "4x=25-3
\n" ); document.write( "4x=22
\n" ); document.write( "x=22/4
\n" ); document.write( "x=5.5 (5)
\n" ); document.write( "therefore the unknown number is 3,4 or 5
\n" ); document.write( "proof
\n" ); document.write( "4*3+3=12+3=15
\n" ); document.write( "4*4+3=16+3=19
\n" ); document.write( "4*5+3=20+3=23
\n" ); document.write( "all solution are intergers that satisfy the equation 3x+3>=13 & <=25.
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