Solve for x, y, z
x=a
y=\frac{47-7a}{3}
z=a
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z=x 7x+3y=47 a=z
Reorder the equations.
a=x
Substitute x for z in the equation a=z.
y=-\frac{7}{3}x+\frac{47}{3} x=a
Solve the second equation for y and the third equation for x.
y=-\frac{7}{3}a+\frac{47}{3}
Substitute a for x in the equation y=-\frac{7}{3}x+\frac{47}{3}.
z=a
Substitute a for x in the equation z=x.
x=a y=-\frac{7}{3}a+\frac{47}{3} z=a
The system is now solved.
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