Sunday, June 04, 2006

growing post 3

im only giving the answers

1) algebraic expression represents variables, we can substitute one or more number for the letters in the algbriac expression and it does not habe an equal sign

an algebraic equation, the number of the variable is given and you need to solve the numbers to get the appropriate number for the variable

the difference is the variable for the expression is not given while the variable for the equation is given and it has equal sign.

2) variable is the letter in algebraic expression and equation (likex,y). we use that to represent the unknown number. to find it out use START +CHANGE(VARIABLE)

3) solve for N

4)
a)3n+4n+7=2n+12n
b)8n-(4+9)=11
c)(8-3)n+7n+8+4n+40

5) for this question you need to create a T-chart and a graph to plot your data onto paper




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