1)
2x - 3 (4 - x) = 5 - (x - 1)
2x - 12 + 3x = 5 - x + 1
6x = 18
x = 3
2)
5x - 6 (2x + 7) = 13 - (x + 1)
5x - 12x - 42 = 13 - x - 1
-6x = 54
x = -9
У=7x-5 => k=7 => f `(x₀)=7
y=x²+6x-8
y`(x)=(x²+6x-8)`=2x+6
y`(x₀)=2x₀+6 и y`(x₀)=k=7
2x₀+6=7
2x₀=1
x₀=0,5 - точка касания
2-х√3=х-3
<span>-х√3-х=-3-2
</span>-х(√3+1)=-5
х=5/-(√3+1)