1. Writing Equations in One Variable
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The word equals
divides the sentence into what should be on the left-hand side and what should be on the right-hand side of the equation.
b-9=2
We have been given a sentence and we need to translate it into an equation.
|
9 less than a number b equals 2. |
is,
is equal to,and
equalstell us about the placement of the equals sign.
9less than a numberb
equals
2.
⇕
9less than a numberb
=
2.
On the left-hand side we have the key word: less than. This word tell us the operation that will be used in our equation. Less than
indicates subtraction.
9 less than a numberb
b - 9
On the right-hand side, we have number the number 2. Putting these sides together, we have a complete equation.
b - 9 = 2