1. The problem is to find the total charge when adding the charges of five particles, each represented by a blank parenthesis with either +1 or -1 charge. 2. Each proton has a charge of +1 and each electron has a charge of -1. 3. We need to fill the blanks with either +1 or -1 and then sum them up. 4. Since the problem shows five blanks and the charges +1 and -1 below, let's assume the sequence is: +1, -1, +1, -1, +1. 5. Write the sum: $$+1 + (-1) + +1 + (-1) + +1$$ 6. Simplify step-by-step: $$= +1 - 1 + 1 - 1 + 1$$ $$= (\cancel{+1} - \cancel{1}) + (\cancel{+1} - \cancel{1}) + +1$$ $$= 0 + 0 + 1$$ $$= 1$$ 7. The total charge is $1$. This means the net charge of the five particles is positive one unit charge.