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You can write an expression with a variable in many different ways. First it all depends on what the word problem says.
For Example : *Three times a number increased by four is less than eight.
The answer would be 3x+4<8 or it could be written as 8>4+3x it will equal to the same amount.
It doesn't matter what variable you use if it doesn't have an amount. Because all variables equal to 1, you can use any letter.
REMEMBER EXPRESSION HAVE >,<, OR = . WHILE EQUATIONS HAVE ONLY = .
Hope I helped (: .
*Problem found by Fantastic Five #37 problem #2
2008 Revision Gunnells Publishing, LLC.
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10n
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