Which of the following systems has infinitely many solutions? a: -y=-4-3x
6x=2y-8
b: y=x+2
7=-x+y
c: x+y=15
3x-2y=3
d: x=y-8
-x-y=0

What is the value of y? round to the nearest tenth

Factor -8x3-2x2-12x-3 by grouping what is the resulting expression?

Follow these steps using the algebra tiles to solve the equation −5x + (−2) = −2x + 4. 1. add 5 positive x-tiles to both sides and create zero pairs. 2. add 4 negative unit tiles to both sides and create zero pairs. 3. divide the unit tiles evenly among the x-tiles. x =