7. simplify: -8y - (x - 4x) + 3y
a. 7x + 2y
b. -7x - 7y
c. -3x - 5y
d. 3x - 5y

Plz determine whether the polynomial is a difference of squares and if it is, factor it. y2 – 196 is a difference of squares: (y + 14)2 is a difference of squares: (y – 14)2 is a difference of squares: (y + 14)(y – 14) is not a difference of squares

To start to solve the system of equations below, which number would you multiply in the equation -2x-5y=-1? the two equations are -2x-5y=-1 and 4x+2y=8

Tiene pendiente -4 y pasa por el punto (-3, -2) encuentre la ecuación de la recta , ayuden porfa urgente