Leila bought 2 pairs of shoes that were the same price. including the $3 sales tax, she paid a total of $57. what was the cost of each pair of shoes before the tax was added?

57-3 = 54
That means without tax, both shoes cost $54. So half of 52 is $26. They were each $26.

Multiply the parentheses by 2
10-2x
Multiply the parentheses by -3
-3(x-6)
Add the numbers.
10-2x-3x+18=28-5x
28-2x-3x=28-5x
Group like terms.
10-2x-3x+18=28-5x
28-5x=28-5x
The statement is true for any value of, since both members are identical.
28-5x=28-5x= xer