Olivia B.
asked • 11/28/21i need help with solving the three variables
x-7y+3z=17
5x+2y-2z=-57
3x-10y-z=-11
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1 Expert Answer
Mark M. answered • 11/28/21
Tutor
5.0
(278)
Mathematics Teacher - NCLB Highly Qualified
Multiply both sides of bottom by 3, add to top to eliminate z
Multiply both sides of bottom by -2, add to middle to eliminate z
You have two equations in x and y.
Continue from there.
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Olivia B.
thats not helping can you further explain how to do it? step by step?11/28/21