Solve for l, a, b, c
c=9
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b=2+7
Consider the third equation. Insert the known values of variables into the equation.
b=9
Add 2 and 7 to get 9.
c=9
Consider the fourth equation. Insert the known values of variables into the equation.
l=7 a=2 b=9 c=9
The system is now solved.
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