Solve for y, x, z, a
a=0
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3\times 3x=-1
Consider the second equation. Multiply both sides of the equation by 6, the least common multiple of 2,6.
9x=-1
Multiply 3 and 3 to get 9.
x=-\frac{1}{9}
Divide both sides by 9.
y=\frac{13}{3} x=-\frac{1}{9} z=0 a=0
The system is now solved.
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