Solve for a, b, c, d
d=1
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c=2\left(-2\right)+5
Consider the third equation. Insert the known values of variables into the equation.
c=-4+5
Multiply 2 and -2 to get -4.
c=1
Add -4 and 5 to get 1.
d=1
Consider the fourth equation. Insert the known values of variables into the equation.
a=-2 b=5 c=1 d=1
The system is now solved.
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