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Tatiana [17]
3 years ago
6

Solve the system of Linear equations by elimination

Mathematics
1 answer:
Delvig [45]3 years ago
3 0
With these, you pick either equation and a variable to solve for; let's solve for x using the 2nd eq: 3x - 4y = 11; 3x = 4y - 11; x = (4/3)y - (11/3).

Now, plug x into the first eq: 3( (4/3)y - (11/3) ) + 4y = 5; 4y -11 +4y = 5; 8y = 16; y = 2.

To get an actual number for x, plug in y into either equation and you should get x = -1.
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