Solve for y, z, a
a=9
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3+5y-6=21
Consider the first equation. Multiply 1 and 6 to get 6.
-3+5y=21
Subtract 6 from 3 to get -3.
5y=21+3
Add 3 to both sides.
5y=24
Add 21 and 3 to get 24.
y=\frac{24}{5}
Divide both sides by 5.
y=\frac{24}{5} z=9 a=9
The system is now solved.
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