Solve for a, b, c, d
d=18
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c=3\times 6-4\left(-3\right)-12
Consider the third equation. Insert the known values of variables into the equation.
c=18+12-12
Do the multiplications.
c=30-12
Add 18 and 12 to get 30.
c=18
Subtract 12 from 30 to get 18.
d=18
Consider the fourth equation. Insert the known values of variables into the equation.
a=6 b=-3 c=18 d=18
The system is now solved.
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