SOLUTION: 3x+75 + x + y = 180 the x and the y are supposed to help me find the area of a square. 2x + 15 and y are the sides of the square.

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons  -> Linear Equations Lesson -> SOLUTION: 3x+75 + x + y = 180 the x and the y are supposed to help me find the area of a square. 2x + 15 and y are the sides of the square.      Log On


   

Question 592781: 3x+75 + x + y = 180
the x and the y are supposed to help me find the area of a square.
2x + 15 and y are the sides of the square.
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
the sides of a square are equal; so, 2x + 15 = y

substituting ___ 3x + 75 + x + 2x + 15 = 180

solve for x, then substitute back to find y