The answer is 0. Simply add the numbers together arithmetically as you would for the problem two plus two. To check your work, a calculator is the best option.
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-4 plus 4 equals zero.
Negative plus a negative is a negative. Ex. -1+-1=-2 Negative times a negative is a positive. -2*-2=4 But a negative [minus] plus a positive [plus] can be minus, zero or plus: For example, -3 + 2 = -1 -3 + 3 = 0 -3 + 4 = +1
negative read this : "MULTIPLICATION: minus times minus is plus (negative x negative = positive).....minus times plus is minus (negative x positive = negative).....plus times plus is plus (positive x positive = positive) DIVISION: minus divi minus is plus (negative ÷ negative = positive)......minus divi plus is minus (negative ÷ positive = negative).....plus divi plus is plus (positive ÷ positive = positive)"
neg(-k) + neg(-k) = k + k = 2k = 4
You switch the numbers to 6 plus four, because it's the same thing. So, positive 6 minus negative 4 is 10.