Elimination Method of Finding Solution of a Pair of Linear Equations
How do you so...
Question
How do you solve 42=7y ?
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Solution
To solve this, you must use division. If 7y=42 then you can think about what times 7 is equal to 42. But, an easier way to do this, is the following way.
First, divide the side that has 7y by 7.
7y7=42
Now , divide the 42 by 7 as what is done to one side must be done to the other.
y=427 After solving that division problem, you know that 42÷7=6 .