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likoan [24]
3 years ago
12

6. Solve the the following system of equations: 4y+2x=14 2y+2x=10

Mathematics
1 answer:
Inessa05 [86]3 years ago
3 0
4y+2x=14 ==> multiply this 1st equation by (-1) => -4y-2x=-14
Now add it up to the 2nd equation
-4y-2x=-14
 2y+2x=10
--------------    And now add them up
-2y +0x=-4
==> -2y=-4==> 2y = 4 &    y=2                   
Last step: plug y into any equation & you will find x=3
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