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lions [1.4K]
3 years ago
12

PLEASE SHOW ALL THE STEPS THAT YOU USE TO SOLVE THIS PROBLEM

Mathematics
1 answer:
777dan777 [17]3 years ago
3 0

Answer: x = 1, y = 1, z = 0

<u>Step-by-step explanation:</u>

EQ 1: -2x + 2y + 3z = 0                  EQ 2: -2x  -   y +   z = -3

EQ 3: <u>2x + 3y + 3z = 5</u>                  EQ 3:   <u>2x + 3y + 3z = 5 </u>

                 5y + 6z = 5                                       2y + 4z = 2

Eliminate one of the variables for the new equations:

2(5y + 6z = 5) -->  10y + 12z = 10

-3(2y + 4z = 2) -->  <u> -6y - 12z = -6</u>

                                4y          = 4

                                          y = 1

Substitute y = 1 into one of the new equations to solve for z:

5(1) + 6z = 5

5   + 6z = 5

        6z = 0

          z = 0

Substitute y = 1 and z = 0 into one of the original equations to solve for x:

2x + 3(1) + 3(0) = 5

2x + 3 + 0 = 5

2x             = 2

             x = 1

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