Solve for x, y, z
z=-5
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2x+2-x=4
Consider the first equation. Subtract x from both sides.
x+2=4
Combine 2x and -x to get x.
x=4-2
Subtract 2 from both sides.
x=2
Subtract 2 from 4 to get 2.
x=2 y=-5 z=-5
The system is now solved.
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