aresenta en la recta real los siguientes intervalos \[ \begin{array}{l}\text { a. }|x| \leq 2 \sqrt{2} \\ \text { c. } \mid-\pi, 2 \pi) \\ \text { e. }|x+5| \leq 15\end{array} \]

Which of the following equations has no solution? \( \begin{array}{c}5 x+20-7 x=7(3+x)-3 x \\ x+20-5 x=7(3+x)-3 x \\ 5 x+21-x=7(3+x)-3 x \\ 5 x+20-x=7(3+x)-3 x\end{array} \)

5) \( 4(2-x)=x+3 \)

Question 3 A store is selling a large selection of men's shirts, and every shirt has the same price. Kiyoshi buys 6 shirts and gets a \( \$ 30 \) discount. His friend Gregory buys 4 shirts and does not receive a discount. Gregory spends \( \$ 20 \) less than Kiyoshi. What is the price of one shirt without any discount? \( \$ 25 \) \$ \( \$ 5 \) \$ \( \$ 100 \) \( \$ 80 \)

3) \( Y+\left[\begin{array}{l}-1 \\ -6\end{array}\right]=\left[\begin{array}{c}10 \\ -14\end{array}\right] \)

e) \( (3 x+2) \cdot\left(x^{3}-2 x^{2}+1\right)= \)