Question

Solve for x: -2 + 5 < 7

Answer 1

x > -1

Explanation:

We are given the following inequality:

-2x + 5 < 7

We solve it just like we would an equality

-2x < 7-5

-2x < 2

Here, we have to be careful. The coefficient that multiplies x has to be positive. So we multiply the entire inequality by -1, which changes the sign from < to >. So

2x > -2

x > -2/2

x > -1