Compare Expressions: Is 15x-30 Equal to 45-15-5x+15x?

Question

Are the expressions the same or not?

15x30 15x-30

45155x+15x 45-15-5x+15x

Video Solution

Solution Steps

00:00 Are the expressions equal?
00:04 Let's simplify the expression, group the terms
00:15 It appears the expressions are not equal
00:19 And this is the solution to the question

Step-by-Step Solution

To solve this problem, we'll follow these steps:

  • Step 1: Simplify each given expression.
  • Step 2: Compare the simplified expressions to determine if they are equivalent.

Now, let's work through each step:

Step 1: Simplify the expressions

First expression: 15x30 15x - 30

  • The expression is already simplified as it includes one variable term 15x 15x and one constant term 30-30.

Second expression: 45155x+15x 45 - 15 - 5x + 15x

  • Combine the constants: 4515=30 45 - 15 = 30 .
  • Combine the variable terms: 5x+15x=10x-5x + 15x = 10x .
  • The simplified form of the second expression is: 10x+30 10x + 30 .

Step 2: Compare the simplified expressions

After simplification:

The first expression is 15x30 15x - 30 .

The second expression is 10x+30 10x + 30 .

Clearly, these simplified expressions are not the same.

Therefore, the solution to the problem is No.

Answer

No