Solve for a, b, c, d
d=2
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c=1\times 2
Consider the third equation. Insert the known values of variables into the equation.
c=2
Multiply 1 and 2 to get 2.
d=2
Consider the fourth equation. Insert the known values of variables into the equation.
a=1 b=2 c=2 d=2
The system is now solved.
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