You just substitute in what x equals. ex. x=16, x-7 : 16-7=9.
x-7
1. x= -8; -8-7= -15
2. x= -11; -11-7= -18
3. x=16; 16-7= 9
1The two equivalent equations will be
1. 
2. 
<h3>What is linear equation?</h3>
An equation between two variables that gives a straight line when plotted on a graph.
The required two equivalent equations are


The above equation has no repeating numbers and fulfill the criteria.
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