22×5
x2x^{2}x2-3x>2
a box has 6 red balls, 4 blue balls and 5 green balls.
Without looking you take out one ball and do not put it back and then take...
2x=8y=-7, x-3y=7
2x=8y=-7,x-3y=7
3/7 + 2/5
2x=8y=-7
x-3y=7
2x+8(2 4/5- x/5)=-7
factorize completely 2x²-50
