When adding two negative numbers,
the absolute value of the numbers and keep the negative sign.

Which expression is equivalent to 2x^2+2x-4/2x^2-4x+2

What is the first step of an indirect proof of a number that is divisible by two

Which of these equations, when solved, gives a different value of x than the other three? a9.1 = -0.2x + 10 b10 = 9.1 + 0.2x c10 – 0.2x = 9.1 d9.1 – 10 = 0.2x