Question
Verify that the values of the variables listed are solutions of the system of equations.$$\begin{aligned}&\left\{\begin{array}{r}{3 x+3 y+2 z=4} \\{x-y-z=0} \\{2 y-3 z=-8}\end{array}\right.\\&x=1, y=-1, z=2\\&(1,-1,2)\end{aligned}$$
Step 1
The first equation is $3x + 3y + 2z = 4$. Substituting the values, we get $3(1) + 3(-1) + 2(2) = 4$. Simplifying this, we get $3 - 3 + 4 = 4$, which simplifies to $4 = 4$. Show more…
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