Chapter 6: Problem 61
In your own words, describe a step-by-step approach for solving algebraic word problems.
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Chapter 6: Problem 61
In your own words, describe a step-by-step approach for solving algebraic word problems.
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Solve each inequality and graph the solution set on a number line. \(4(x+1)+2 \geq 3 x+6\)
In Exercises 33-36, solve each equation using the zero-product principle. \(x^{2}+8 x+15=0\)
Use the five-step strategy for solving word problems to find the number or numbers described. When a number is decreased by \(20 \%\) of itself, the result is 20 . What is the number?
Solve the quadratic equations by factoring. \(x^{2}+7 x=18\)
In Exercises 39-40, name the property used to go from step to step each time that "(why?)" occurs. $$ \begin{aligned} &7+2(x+9) \\ &=7+(2 x+18) \quad(\text { why? }) \\ &=7+(18+2 x) \quad(\text { why? }) \\ &=(7+18)+2 x \quad(\text { why? }) \\ &=25+2 x \\ &=2 x+25 \quad \text { (why?) } \end{aligned} $$
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