Solve for x, y, z
z=9
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\frac{1}{4}x=-2+\frac{1}{4}
Consider the first equation. Add \frac{1}{4} to both sides.
\frac{1}{4}x=-\frac{7}{4}
Add -2 and \frac{1}{4} to get -\frac{7}{4}.
x=-\frac{7}{4}\times 4
Multiply both sides by 4, the reciprocal of \frac{1}{4}.
x=-7
Multiply -\frac{7}{4} and 4 to get -7.
x=-7 y=9 z=9
The system is now solved.
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