Question

The expression on the left side of an equation is shown below. 3x+9= []

If the equation has no solution, which expression can be written in the box on the other side of the equation?

A. –9
B. –3
C. 3x
D. 3x + 9

Answer 1

Answer:

C. 3x

Step-by-step explanation:

The first two choices give 1 solution each.

The last choice gives an infinite number of solutions.

Choice C. gives no solution.

3x + 9 = 3x

Subtract 3x from both sides.

9 = 0

Since 9 = 0 is false, equation 3x + 9 = 3x has no solution.

Answer 2

The expression can be written in the box on the other side of the equation as C. 3x.

What is a system of equations?

A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.

The given expression is

3x + 9 = _

Subtract 3x from both sides;

9 = 0

Since 9 = 0 is false,

The equation 3x + 9 = 3x has no solution.

Learn more about equations here;

https://brainly.com/question/10413253

#SPJ2