(its part b to question 9 ) If there are 15 students who don't wear glasses how many students are there in class? PLZ HELP WILL
GIVE BRANLIST
2 answers:
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Keywords:
<em>Equation, variable, value, clear </em>
For this case we have an equation with a variable of the form . Where
. Given the value of
, we want to find the value of the variable "x". So, we have:
We must clear "x", for this, we add "19" to both sides of the equation:
We divide between "3" on both sides of the equation:
Thus, the value of the variable "x" is 30.
Answer:
Option A