answer: lack of info
no time given for her math
based on the solution of the examples, the main mathematical skill that is needed to use is substitution
q: what have you observed in the solution of the examples?
consider the following example:
we are given the values of:
a = 2
b = 3
in order to solve this, we have to substitute the values of a and b to the given equation.
+ = +
+ = 4 + 27
+ = 31
to summarize, see the following steps:
1. write the equation - first, we should write the equation. in this case, the equation is equals to + .
2. substitute the given values to the equation - after we have written the equation, we have to substitute the given values to the equation. in this case, a = 2 while b = 3
3. evaluate the equation.
for more information about mathematical substitution, kindly refer to the following link/s: