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-3
2X - 5Y = 2- 5Y = - 2X + 2Y = (2/5)X - 2/5==================
5y+8=7y subtract 5y from each side , 5y+8=7y -5y -5y 8=2y /2 /2 4=y
25y2 - 49w2 = (5y)2 - (7w)2 = (5y - 7w)(5y + 7w)
7
-3
5y-2y= 3y+2 5y-2y-3y= 2 0y= 2
2X - 5Y = 2- 5Y = - 2X + 2Y = (2/5)X - 2/5==================
5y-3y = 2
5y+8=7y subtract 5y from each side , 5y+8=7y -5y -5y 8=2y /2 /2 4=y
25y2 - 49w2 = (5y)2 - (7w)2 = (5y - 7w)(5y + 7w)
(5y - 2)(5y + 2)
7
5y + 7 = 25y = -5y = -1
If you mean: 5y(4t-2) then it is 20ty-10y
-2 = 3y-18-5y 16=3y-5y 16=-2y y=-8
5y - 2 = 28 - y 5y + y = 28 + 2 6y = 30 y = 30/6 y = 5