Seven pipes empty a water tank in five days. In how many days would four pipes empty this tank?
1 answer:
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<h3><u>Explanation</u></h3>
- Given the equation.
- Solve the equation for d-term.
Because we cannot subtract or add up constants and variables, we simply move the same variable term to the same side and constant term to the same constant side.
- Answer Check
Substitute d = -11 in the equation.
The equation is true for d = -11.
<h3><u>Answer</u></h3><u></u>