Question

-x + 12 < 20, solve this inequality

Answer 1

Answer:

Step-by-step explanation:

-x + 12 <20

-x < 20 - 12

- x < 8

x < - 8

Answer 2

Answer:

Firstly ,

Lets discuss some rules of inequalities which will be used:-)

1●) While moving a constant on other side,

sign of that const. will be changed.

2●)Multiplying both side by -ve number will change sign of inequality.

Now,

Lets Solve:-)

-x + 12 < 20

⟹ -x < 20 - 12 (∵using1●))

⟹ -x < 8

⟹ x > -8 (∵using2●))