Question

2.5 – 1.2x < 6.5 – 3.2x?

Answer 1

2.5 - 1.2x < 6.5 - 3.2x

add 3.2x to both sides;

2.5 + 2x < 6.5

minus 2.5 from both sides;

2x < 4

x < 2

Explanation:

This is the exact same as doing a linear equation, so brush up on this skill.

Answer 2

Answer: x<2 or xϵ(-∞; 2)

Explanation:

Add +3.2x to both sides of inequality:

2.5-1.2x+3.2x<6.5-3.2x+3.2x

2.5+2x<6.5

Deduct 2.5 from both sides of inequality:

2.5-2.5+2x<6.5-2.5

2x<4

Divide both sides of inequality by 2

2x/2<4/2

x<2 or xϵ(-∞; 2) ( the answer can be written in 2 ways)