answer to 18x+4y=-4 and -9x+8y=-8

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1 Answer

Halve the first equation: 9x+2y=-2 and add to the second equation -9x+8y=-8:

10y=-10, y=-1.

Substitute for y in either equation: -9x+8y=-9x-8=-8, -9x=0, x=0.

Solution: x=0, y=-1.
by Top Rated User (1.1m points)

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