SOLUTION: 10+12x=y 25+8x=y

Algebra ->  Systems-of-equations -> SOLUTION: 10+12x=y 25+8x=y      Log On


   



Question 287021: 10+12x=y
25+8x=y

Answer by brucewill(101) About Me  (Show Source):
You can put this solution on YOUR website!
In this particular example, since y is already equal to somehthing, you can simply make the equations equal to one another, and solve for x, then for y.
10%2B12x=25%2B8x subtract 8x from both sides, and subtract 10 from both sides.
===
4x=15
===
x=%2815%2F4%29
===
Now substitute the 15/4 into either equation, and solve for y. This is being left as an exercise to the student :).