I am trying to help my grandson with his math homework. When I went to school we never learned this and I am at a loss. The question is:

Create an equivalent expression at includes at least one parenthesis so that the value of the expression is 144.
The expression is
4+5x17-3 divided by 1/2

1 answer

4+5x(17-3)/(1/2)
= 4+5x14/(1/2)
= 4+5x28
= 4+140
= 144