SOLUTION: The equation which represents x, the width of the border is 2(8-2x)+2(4-2x)=18. What is the width of the border?

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: The equation which represents x, the width of the border is 2(8-2x)+2(4-2x)=18. What is the width of the border?      Log On


   

Question 928959: The equation which represents x, the width of the border is 2(8-2x)+2(4-2x)=18. What is the width of the border?
Found 2 solutions by ewatrrr, MathLover1:
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
2(8-2x)+2(4-2x)=18
16 - 4x + 8 - 4x = 18
-8x = -6
x = 6/8 0r 3/4 units

Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

since the width of the border is x, solve
2%288-2x%29%2B2%284-2x%29=18 for x
cross%282%29%288-2x%29%2Bcross%282%29%284-2x%29=cross%2818%299
8-2x%2B4-2x=9
12-4x=9
12-9=4x
3=4x
3%2F4=x
so, the width of the border is 3%2F4