Solve for y, z, a, b, c, d
d=-2
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-2y+5=9
Consider the first equation. Swap sides so that all variable terms are on the left hand side.
-2y=9-5
Subtract 5 from both sides.
-2y=4
Subtract 5 from 9 to get 4.
y=\frac{4}{-2}
Divide both sides by -2.
y=-2
Divide 4 by -2 to get -2.
y=-2 z=-2 a=-2 b=-2 c=-2 d=-2
The system is now solved.
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