Question

помогите пожалуйста дам 100 баллов ​

Answer 1

1)

$\frac{6}{ |x - 5| } = 2 \\ 2 |x - 5| = 6 \\ |x - 5| = 3 \\ 1) \: \: x - 5 = 3 \\ x = 3 + 5\\ x _{1} = 8 \\ 2) \: \: x - 5 = - 3 \\ x = - 3 + 5 \\ x _{2} = 2$

2)

$\frac{ |7 - x| }{4} = 3 \\ |7 - x| = 12 \\ 1) \: \: 7 - x = 12 \\ x = 7 - 12 \\ x _{1} = - 5 \\ 2) \: \: 7 - x = - 12 \\ x = 7 + 12 \\ x_{2} = 19$

3)

$\frac{4}{ |2x + 1| } = 0.8 \\ 0.8 |2x + 1| = 4 \\ |2x + 1| = 5 \\ 1) \: \: 2x + 1 = 5 \\ x = 5 - 1 \\ 2x = 4 \\ x = 4 \div 2 \\ x_{1} = 2 \\ 2) \: \: 2x + 1 = - 5 \\ 2x = - 5 - 1 \\ 2x = - 6 \\ x = - 6 \div 2 \\ x _{2} = - 3$