Solve for x, y, z
x=-4
y=-2
z=1
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z=\frac{3}{3}
Consider the third equation. Divide both sides by 3.
z=1
Divide 3 by 3 to get 1.
4y+1=-7
Consider the second equation. Insert the known values of variables into the equation.
4y=-7-1
Subtract 1 from both sides.
4y=-8
Subtract 1 from -7 to get -8.
y=\frac{-8}{4}
Divide both sides by 4.
y=-2
Divide -8 by 4 to get -2.
2x-4\left(-2\right)+4\times 1=4
Consider the first equation. Insert the known values of variables into the equation.
2x+8+4=4
Do the multiplications.
2x+12=4
Add 8 and 4 to get 12.
2x=4-12
Subtract 12 from both sides.
2x=-8
Subtract 12 from 4 to get -8.
x=\frac{-8}{2}
Divide both sides by 2.
x=-4
Divide -8 by 2 to get -4.
x=-4 y=-2 z=1
The system is now solved.
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