Jason solved the following equation to find the value for
-8.5x – 3.5x = -78
x = 6.5
Describe how Jason can check his answer.

Substitute the value for x into the original equation.

Simplify using order of operations.

If the statement is true, Jason’s solution for x is correct.

If the statement is false, Jason’s solution for x is incorrect.

6

Step-by-step explanation:

expand

x-7= 1/4x-10/4

3/4x=18/4

multiply 4 on both sides to get rid of the denominator

3x=18

x=6

check work by substituting

6-7= 1/4(6-10)

-1= 1/4(-4)

-1=-1

they are equal, so it's correct