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Chapter 4: Problem 60
Simplify: \(5+6(x+1)\)
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Determine whether each statement 鈥渕akes sense鈥� or 鈥渄oes not make sense鈥� and explain your reasoning. When I use graphing to solve an inconsistent system, the lines should look parallel, and I can always use slope to confirm that they really are.
Involve dual investments. Things did not go quite as planned. You invested part of 8000 dollar in an account that paid \(12 \%\) annual interest. However, the rest of the money suffered a \(5 \%\) loss. If the total annual income from both investments was 620 dollar how much was invested at each rate?
Read Exercise \(72 .\) Then use a graphing utility to solve the systems. $$\left\\{\begin{array}{l}y=-x+5 \\ y=x-7\end{array}\right.$$
In Exercises \(1-44,\) solve each system by the addition method. If there is no solution or an infinite number of solutions, so state. Use set notation to express solution sets. $$\left\\{\begin{array}{l} 4 x=36+8 y \\ 3 x-6 y=27 \end{array}\right.$$
Will help you prepare for the material covered in the next section. In each exercise, solve the given equation. $$(5 x-1)+1=5 x+5$$
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