Practice problem
What is −1+(−2)+(−3)+(−4)+(−5)+(−6)-1+(-2)+(-3)+(-4)+(-5)+(-6)−1+(−2)+(−3)+(−4)+(−5)+(−6)
−19-19−19
−22-22−22
−21-21−21
191919
Type a concept, like “slope” or “photosynthesis”.
