Question

Найдите корени уравнения:
8+x/4=x+5
2+x/5=x+1/2
x-11/x-12=11/10
1/x+9+1/x-9=0

Answer 1

8+x/4=x+5

8+x=4x+20

x-4x=20-8

-3x=12

x=12÷(-3)

x=-4

2+x/5=x+1/2

4+2x=10x+5

2x-10x=5-4

-8x=1

x=-1/8