What is the reason for each step in the solution of the equation?
2 answers:
Consider the given equation
We have to determine the reasons to the given steps for finding the solution to the given equation.
The reason to the above step is "Additive property of Equality", which states that if the same amount is added to both sides of an equation, then the equality is still true.
x=3
The reason to the above step is "Division property of Equality",which states that if we divide both sides of an equation by the same nonzero number, the equation remains equal.
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Given
gas prices are now $3.75 and it up 10% from 6 months ago.
Find out how much were gas prices 6 months ago.
To proof
gas prices now = $3.75
let the gas price 6 month ago = x
gas price now is rise up 10% from 6 months ago
First write 10% in simpler form
= 0.1
Now the equation becomes
0.1x + x = 3.75
1.1x = 3.75
x = 3.41 (approx)
Thus gas prices 6 months ago be $ 3.41 (approx )
Hence proved