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3 years ago

Solve, using linear combination.

Mathematics

1 answer:

Bingel [31]3 years ago

8 0

Multiply the first equation by -1 to get -4x - y = --5

Then add the second equation 3x + y = 3

+ ____________

-x = -2 or x = 2

then plug in 2 for x in one of the equations and solve for y 4(2) + y = 5

8 + y = 5

Subtract 8 from both sides y = -3

So x = 2, y = -3 or (2,-3)

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<u>Convert statement into algebraic expression:</u>

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