Solve for x, y, z
x=18
y=20
z=38
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18+20=z
Consider the first equation. Insert the known values of variables into the equation.
38=z
Add 18 and 20 to get 38.
z=38
Swap sides so that all variable terms are on the left hand side.
x=18 y=20 z=38
The system is now solved.
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