Answer: 23
Step-by-step explanation:
Benches = x
4x + 3 = 5x - 2
x = 5
this equals that x = 5 because we put the unknown algebraic number on one side and the numerals on the other.
So if there are 5 benches then the number of children will be
4 * 5 + 3 or 5 * 5 - 2, which both equal 23.
Therefore, the answer to this question is 23 children