Question

Mikayla and Jesse both solved the equation x−15=12−8 , using substitution. Mikayla says the answer is x=19 , and Jesse says the answer is x=27 . Which student is correct, and how do you know? Show your work and explain your thinking. (2 points)

Answer 1

no one can use this now bc i used it

Answer 2

Solve the following equation. Show all your work. 21.3=x+5.1 (2 points)

Answer 3

agian ppl dont use so you dont get introuble

Answer 4

To check which student is correct, we can solve the equation step by step using substitution.

Given equation: x - 15 = 12 - 8

Starting with Mikayla's solution:
x - 15 = 12 - 8
x - 15 = 4
x = 4 + 15
x = 19

Now, let's check Jesse's solution:
x - 15 = 12 - 8
x - 15 = 4
x = 4 + 15
x = 19

As we can see, both Mikayla and Jesse arrived at the same solution, x = 19. Therefore, both students are correct in this case.

Answer 5

I apologize for the oversight. Here is the solution without the direct use of substitution:

Given equation: x - 15 = 12 - 8

First, simplify both sides of the equation:
x - 15 = 12 - 8
x - 15 = 4

Next, add 15 to both sides of the equation to isolate x:
x - 15 + 15 = 4 + 15
x = 19

Therefore, the correct answer is x = 19. Both Mikayla and Jesse are correct in their solution.

Answer 6

To solve the equation 21.3 = x + 5.1, we need to isolate x on one side of the equation.

Subtract 5.1 from both sides of the equation:

21.3 - 5.1 = x + 5.1 - 5.1
16.2 = x

Therefore, the solution to the equation is x = 16.2.

Answer 7

I apologize for the oversight. Here is the solution without the direct use of substitution:

Given equation: 21.3 = x + 5.1

First, subtract 5.1 from both sides of the equation:
21.3 - 5.1 = x + 5.1 - 5.1
16.2 = x

Therefore, the correct answer is x = 16.2.