0
5x+2y>8, y≤4 5x+2(4)>8 5x+8>8 5x>0 x>0
5y explanaition 5x-5x=0, 0-2y=-2y, -2y+7y=5y
8(1+5x) +5 = 13+5x => 8+40x + 5 = 13 +5x => 13+40x = 13+5x => 13-13+40x = 13-13+5x => 40x = 5x => 40x - 5x = 0 => 35x = 0 => 35x/35 = 0/35 => x = 0
It is: (5x-1)(5x+1) = 0 when factored
5x-5x = 0
0
0
0
if the x in "7x2" is variable x, then 7x(2)-5x=0 14x-5x=0 9x=0 x=0 if the x in "7x2" is a symbol for multiplication, then 7(2)-5x=0 14-5x=0 -5x= -14 5x=14 x= 14/5 x= 2 4/5 or, to factor it out... x(14-5)=0 x(9)=0 9x=0
5x+2y>8, y≤4 5x+2(4)>8 5x+8>8 5x>0 x>0
5y explanaition 5x-5x=0, 0-2y=-2y, -2y+7y=5y
8(1+5x) +5 = 13+5x => 8+40x + 5 = 13 +5x => 13+40x = 13+5x => 13-13+40x = 13-13+5x => 40x = 5x => 40x - 5x = 0 => 35x = 0 => 35x/35 = 0/35 => x = 0
It is: (5x-1)(5x+1) = 0 when factored
- 5X + 25Y = 0 25Y = 5X Y = (1/5)X ============
4
5x2 + 20x = 0 5x(x + 4) = 0 x = 0 and -4