Question 2 (5 points) Saved
Determine the best method to solve the system of equations. Then solve the system.
7x - 2y = 8
5x + 2y = 4
elimination using subtraction; (2, -3)
elimination using addition;
elimination using addition;
elimination using subtraction; (-3,2)

(1, -1/2)

Step-by-step explanation:

7x - 2y = 8

5x + 2y = 4

I would use elimination to get rid of y

Add the two equations together

7x - 2y = 8

5x + 2y = 4

12x = 12

Divide each side by 12

x =1

Now find y

5x+2y = 4

5*1 +2y =4

Subtract 5 from each side

5+2y -5 = 4-5

2y = -1

Divide by 2

2y/2 =-1/2

y = -1/2

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step-by-step explanation:

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