Question

2y-6z=-30 -y-z=-1slove the equation​

Answer 1

Step-by-step explanation:

-y-z=-1

=>y+z=1

=>y=1-z

2y-6z=-30

=>2(1-z) -6z=-30

=>2-2z-6z=-30

=>-8z=-321

=>z=4

y=1-z

y=-3

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