AChickenWing AChickenWing

17-03-2021
Mathematics

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Solve this system of equations by using the elimination method -2x-2y=-6, 3x+4y=8

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adewunmifameja adewunmifameja

17-03-2021

Step-by-step explanation:

- 2x-2y=-6

3x+4y=8

multiply equation (1) by 3 and equation (2) by 2

- 6x-6y=18

6x+8y=16

Add

2y=34

y= 34÷2

y=17

substitute 17 for y in equation (2)

3x+4y=8

3x+4(17)=8

3x+68=8

3x=8-68

3x=-60

x=-60÷3

x=-20

x=-20,y=17

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