Question

What value of x is in the solution set of 9(2x + 1) < 9x – 18? –4 –3 –2 –1

Answer 1

A. -4

Explanation:

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Answer 2

-4

Explanation:

9(2x + 1) < 9x – 18

Divide each side by 9

9/9(2x + 1) < 9x/9 – 18/9

2x+1 < x-2

Subtract x from each side

2x+1-x < x-2-x

x+1 < -2

Subtract 1 from each side

x+1-1 < -2-1

x < -3

The only value less than -3 is -4