Answers

2015-07-30T22:23:48+08:00
A Variable is a symbol for a number we don't know yet. It is usually a letter like x or y or any other. A number on its own is called a Constant. EXAMPLE: 9x - 10 = 8. is the variable 9 is the constant.

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2015-07-31T19:57:04+08:00
A variable is a symbol of LETTER and constant is NUMBER
ex.3x+y
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