Question

Solve for X
2x + 9 < 27


Pls help I’ve tried x=9 but it’s not the answer

Answer 1

Answer:

x < 9

Step-by-step explanation:

Notice that the sign here is <, not =.

This is an inequality, not an equation.

When you solve an equation, you typically get an answer that x equals a certain number. When you solve an inequality, you typically get an answer that x is greater than a number or x is less than a number, so there are many numbers that are solutions to an inequality.

Let's solve this inequality.

2x + 9 < 27

Subtract 9 from both sides.

2x < 18

Divide both sides by 2.

x < 9

Answer: x < 9

Every number less than 9 is a solution to this inequality.

Answer 2

9 is the correct answer but you put it wrong.

Notice that the sign here is < not =.

Answer:

x < 9

Step-by-step explanation:

Group all constants on the right side of the inequality

2x+9 < 27

Subtract 9 from both sides:

2x+9-9 < 27-9

Simplify the arithmetic:

2x <27 -9

Simplify the arithmetic:

2x < 18

Isolate the x

Divide both sides by2:

$\frac{2x}{2} <\frac{18}{2}$

Simplify the fraction:

x < $\frac{18}{2}$

Find the greatest common factor of the numerator and denominator:

$x < \frac{9 *2}{1*2}$

Factor out and cancel the greatest common factor:

x < 9