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Question

Use linear combinations to solve the system
3x − y = −4
−6x + y = 34
The value of x is

The value of y is
15 years ago

Answers

Reiny
Just add them ....
-3x = 30
x = -10

back in the first
-30 - y = -4
-y = 26
y = -26
15 years ago

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