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Is this right and can someone show me the explanation plz?and how to do the problem I have to show my work

Is this right and can someone show me the explanation plz?and how to do the problem-example-1
User DCNYAM
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1 Answer

3 votes

Answer:

yes it is.

x = 4 and y = -3

Explanation:

Solve simultaneously using elimination method:

equation 1 - equation 2

3x + y = 9 equation 1

-2x + y = 5 equation 2

_________

x = 4

plug 4 into any of the 2 equations and solve for y.

3(4) + y = 9

12 + y = 9

12-12 + y = 9-12

y = -3

User Tulani
by
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