The first step to solving this is to move the variable to the left side of the equation and change its sign -4x - 18 = 2 now youll need to move the constant to the right side of the equation and change its sign -4x = 2 + 18 next,, add the numbers -4x = 20 and then divide both sides of the equation by -4 x = -5 the correct answer to your question is x = -5 let me know if you have any further questions :)
To work out who the unknowns in the room are, we can establish that c = p+ 9
c + p = 25. The unknowns in the room are there the total number of
parents in the room, and the total number of teachers in the room.
