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-9y-15x ---- -3
Not sure which you mean, take your pick: (8y)3+27=(8y+3)((8y)2-3*(8y)+9)=(8y+3)(64y2-24y+9); or 8y3+27=(2y+3)(4y2-6y+9)
9y+3 = 5y+13 9y-5y = 13-3 4y = 10 y =2.5
12y+3=9y-15 3y=-18 y=-6
8y + 7y = 15ySo [ 8y + 9 + 7y ] = 15y + 9If you want to get fancy and factor that expression, it's 3(5y + 3) .
3(3y + 2) + 8y 9y + 6 + 8y 17y + 6
9y-3y=6y; 6y+2y=8y; so your answer is 8y
To simplify this expression, you combine your like terms (9y and 1y). 9y - 1y = 8y 8y - 25 is your answer. It can't be simplified any further than that.
(-y+4)+ (9y-6) (9y-y) + (4-6) 8y - 2
9y-3 = 6
-9y-15x ---- -3
x - 2y=0 so x = 2y 9y - 4x=1 Substituting for x, 9y-4*(2y) = 1 or 9y-8y = 1 so that y = 1 then x = 2y = 2*1 = 2
Not sure which you mean, take your pick: (8y)3+27=(8y+3)((8y)2-3*(8y)+9)=(8y+3)(64y2-24y+9); or 8y3+27=(2y+3)(4y2-6y+9)
помогите плиз сократить дробь 3y^2-8y-6/4-9y^2
9y+3 = 5y+13 9y-5y = 13-3 4y = 10 y =2.5
Y=30
6*3*542 = 9756