Solve for x, y, z, a
a=3
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5+x=8
Consider the first equation. Combine -x and 2x to get x.
x=8-5
Subtract 5 from both sides.
x=3
Subtract 5 from 8 to get 3.
x=3 y=3 z=3 a=3
The system is now solved.
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