Both expressions equal 5 when substituting 2 for x because the expressions are equivalent. Hope this helped :D
Answer:
$50.59
Step-by-step explanation:
First you take off 20% from 68. ( 68 * 0.2 = 13.6 )
68- 13.6 is 54.4
for the sales tax, you take out 7% of 54.4
54.4 * 0.07 = 3.808
54.4-3.808 = 50.59!
It means to most likely isolate the variable and you should have something like w= or a number =w
Answer is x+9=11
6+x=9
x=3
15=x+12
x=3
7+x=10
x=3
x+9=11
x=2
So x+9=11 has a different x value than the rest of the equations. So it doesn't belong with the other three.
Should be 59.490 just because if you have to round the tenth and the hundredth together
