Remember to follow PEMDAS. Isolate the x.
First, distribute 5 to all terms within the parenthesis
5(2x - 3) = 10x - 15
10x - 15 - 6x < 9
Simplify. Combine like terms
10x - 6x - 15 < 9
4x - 15 < 9
Isolate the x. Add 15 to both sides
4x - 15 (+15) < 9 (+15)
4x < 9 + 15
4x < 24
Finally, to isolate the variable (x) completely, divide 4 from both sides
(4x)/4 < (24)/4
x < 24/4
x < 6
x's answer can be anything less than 6.
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