Solved for y: y=(3x-13)/5
Solved for x: x=(5y+13)/3
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+6
13x = 91To solve for x, divide both sides of the equation by 13.13x/13 = 91/13x = 91/13 = 7
5 it is 5 because 13 + 7 = 20 20 divided by 4 is 5 to find out the answer, work through the equation backwards and use the opposite operations.
1 + 12 = WHAT
-10