2x+5y-7x+2xy
combine like terms
5y-5x+2xy
that's simplified because there are only 3 terms (x, y, and xy) you cannot combine x and y unless it's being multiplied
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2x-5y+15=0 -5y=-2x-15 y=(2/5)x+3
6 - y + 5y - 6y = 6 - 2y
-2x = 20 + 5y-2x - 20 = 5y-2/5x - 4 = yX Intercept = (-10,0) or -10Y Intercept = (0,-4) or -4
The simplified term is 10x2y so that the coefficient is 10.
0 = -2x + 5y - 15 -5y = -2x - 15 y = 2x/5 + 3