Replace the letters by the values, remembering that when a letter is next to another or a number it means multiply; thus:
x^6 + 2y =3^6 + 2x1 = 731.
(if x6 is intending to mean x^6).
If you mean 5x+y = 21 and x = 6-2y then x = 4 and y = 1
(2y + 1) + (y^2 + 1) = 2y + 1 + y^2 + 1 = y^2 + 2y + 2
2x + 2y=-2 (Dividing it by two)x+y=-1 (By transposition)x=-y-1
2y + 7x + y-1?
2y+8y2 can be factored to 2y(1+4y)
The equation can be simplified to show a value of Y in terms of X. 3X + 2Y +2 = 4Y + 4 3X + 2 = 2Y + 4 3X -2 = 2Y and 2Y = 3X - 2 means that Y = (3/2 X) -1
Then 3y+1-2y can be simplified to y+1
x=2y-1
2y(2y - 1)(2y - 3)
2y(2y - 1)(2y - 3)
Presumably you want to know the value of y. 3y+2y+4+1 = 80 5y+5 = 80 5y = 80-5 5y = 75 y = 15
2y + 1