The third function, Solver e, allows you to determine the value of any variable in a
formula or equation. You can input any formula exactly as it appears using
a for any
variables. We will take a look at solving a linear equation and a formula.
5. To find the value of x in the following equation: 2(x
5) = 3x + 2, input the
following starting from the Equation Editor Screen:
e2jf-5kL.n3f+2lu
Note:
In the last screen, “Lft” and “Rgt” represent the values of the left and right sides of
the equation using the value of the solution; this is the calculator’s way of checking the
solution.
You can also enter a formula, assign values and solve for specific variables using the
Solver function of the Equation Editor.
6. Find the radius (to the nearest hundredth) of sphere, whose volume is 3705.97 cm
3
.
To enter the formula
3
4
V
r
3
input the following in to the calculator:
qBa2L.z4N3$Lca6^3l
Note: selecting
q will take you back to the previous screen where you can edit and re-
solve the previous equation or begin a new problem.
Casio “The Basics fx-9860GII”
13
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