Question

Решить уравнение:
1)√1-2х=4
2)√2х-1=3

Answer 1

√1-2х=4
(√1-2х)^2=4^2
1-2x=16
-2x=16-1
-2x=15
x=15/(-2)
x=-7.5

Answer 2

2x-1=9

Answer 3

2x=9+1

Answer 4

2x=10

Answer 5

x=10/2

Answer 6

x=5