07-12-2016
Mathematics

Answered

Solve the system of equation

Solve the system of equation class=

Verified Answer :

08-12-2016

Combine the first and second equation, we get 2x+3z=-13

2. Combine the second and third equation, we get 3x+3z=-15

3. Multiply 2x+3z=-13 by -3 and 3x+3z=-15 by 2.

4. -6x-9z=39 and 6x+6z=-30

5. Combine them together.
-3z=9 z=-3

6. Plug-in the value back to our equation.

2x+3(-3)=-13
2x-9=-13
2x=-4
x=-2

X+y+z=-3
-2+y+-3=-3
y=2

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