9-x>10

Subtract 9 from both sides of the inequality.

-x>10-9

Subtract 9 from 10.

-x>1

-x>1

Multiply each term in -x>1 by -1. When multiplying or dividing both sides of an inequality by a negative value, flip the direction of the inequality sign.

(-x)⋅-1<1⋅-1

Multiply (-x)⋅-1.

Multiply -1 by -1.

1x<1⋅-1

Multiply x by 1.

x<1⋅-1

x<1⋅-1

Multiply -1 by 1.

x<-1

x<-1

The result can be shown in multiple forms.

Inequality Form:

x<-1

Interval Notation:

(-∞,-1)

Solve for x 9-x>10