A because the absolute value is how many spaces the number is away from 0. So it could either be 4 or -4, because both of these are 4 spaces away from zero.
At dinner, 2/5 of the people had fish and 1/3 had chicken. if everyone else had lamb, what fraction of the people had lamb? and if 40 people had lamb , calculate the total number of people at the dinner.
Follow these steps using the algebra tiles to solve the equation ā5x + (ā2) = ā2x + 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 =