Solve for y, x, z
x=8
y=2
z = \frac{22}{5} = 4\frac{2}{5} = 4.4
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2=-\frac{3}{10}\times 8+z
Consider the first equation. Insert the known values of variables into the equation.
2=-\frac{12}{5}+z
Multiply -\frac{3}{10} and 8 to get -\frac{12}{5}.
-\frac{12}{5}+z=2
Swap sides so that all variable terms are on the left hand side.
z=2+\frac{12}{5}
Add \frac{12}{5} to both sides.
z=\frac{22}{5}
Add 2 and \frac{12}{5} to get \frac{22}{5}.
y=2 x=8 z=\frac{22}{5}
The system is now solved.
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