Question

Решите неравенство -7x+1>-1

Answer 1

-7х>-1-1
-7х>-2 (: (-7))
х<2/7
х<1/3,5

Answer 2

-7x+1>-1
-7х>-1-1
-7x>-2
x<2/7
x∈(-∞, 2/7)