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3 years ago

Solve the system of linear equations by adding or subtracting.

Mathematics

1 answer:

Fantom [35]3 years ago

8 0

Answer:

3x + 7y = −17

4x − 7y = 10

Add up both sides of 2 equations, then

7x = -7

=> x = 1

=> y =(3 x 1 - 17)/7 = -14/7 = -2

Hope this helps!

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