Question

Solve the system of equations using the elimination method. 2x − 3y = 50;7x + 8y = −10

A. (0, 5)

B. (6, 10)

C. (10, −10)

D. (3, −3)

Answer 1

i got , C - (10,-10)

Answer 2

Answer: C. (10, -10)

Explanation:

Given

1) 2x-3y=50

2) 7x+8y=-10

Multiply both sides of 1) equation by 3.5

1) 3.5(2x-3y)=3.5×50

7x-10.5y=175

2) 7x+8y=-10

Subtract 2) equation from the 1)

(7x-10.5y)-(7x+8y)=175-(-10)

-18.5y=185

y=-10

x=10

(10, -10)

Hope this helps!! :)

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