Can someone me solve this (it’s for a grade)

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?

Examine the two-step equation. − 7 4 + x 4 = 2 which property of operations allows you to add the same constant term to both sides? amultiplication property of equality bdivision property of equality caddition property of equality dsubtraction property of equality

Factor the polynomial expression x6 – x3 – 20