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Fawn
19 March, 18:23
What is 4x 3y=19,6x-5y=-57?
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Snow White
19 March, 22:06
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4x+3y=19 and 6x-5y=-57
eliminate
multiply first equation by - 6 and 2nd by 4
and add them
-24x-18y=-114
24x-20y=-228 +
0x-38y=-342
-38y=-342
divide both sides by - 38
y=9
sub back
4x+3y=19
4x+3 (9) = 19
4x+27=19
minus 27 both sides
4x=-8
divide 4
x=-2
(x, y)
(-2,9)
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