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What is the solution to the system of equations? Use the linear combination method. {2x−3y=9 {3x+5y=4
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What is the solution to the system of equations? Use the linear combination method.

{2x−3y=9
{3x+5y=4

User Mstgnz
by
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1 Answer

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1. {2x−3y=9
{3x+5y=4

2. {(2x−3y=9)×5
{(3x+5y=4)x3

3. {10x-15y=45
{9x+15y=12

4. (10x-15y=45) + (9x+15y=12)= (19x=57)

5. (19x=57)÷19

6. x=3

7. 2(3)-3y=9

8. 6-3y=9

9. -3y=9-6

10. (-3y=3)÷(-3)

11. y=-1

Answer: x=3 and y=-1
User Crawfish
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