SOLUTION: Write a system of two equations in two unknowns. Solve the system by using the substitution method. � The length of a rectangular field is 12 feet longer than the width. If the p

Question 207151: Write a system of two equations in two unknowns. Solve the system by using the substitution method. � The length of a rectangular field is 12 feet longer than the width. If the perimeter is 144 feet, then what are the length and width
Answer by rfer(16322) (Show Source): You can put this solution on YOUR website!
y=x+12
2x+2y=144
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2x+2(x+12=144
2x+2x+24=144
4x=120
x=30
---------------
y=42
--------------
proof
2(30)+2(42)=144
60+84=144
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