Question about Casio FX-115ES Scientific Calculator
I assume that if you want to enter this equation in the calculator it is for the purpose of solving it for X. In other words you want to use the solve( function. There is no other purpose because it will be erased when calculator is turned OFF.
Here is how you use it.
Use the ALPHA key to enter X, Y, A,B,C,D, = (different from the normal =, which tells calculator to give the result)
When a solution is found the screen displays on 3 lines
The equation you entered : Y=
The value of X : X=
L-R (left member - right member) = 0 or a very small number.
For your particular example you enter 4(5x+3)=2(7x+6) as
4*(5* [ALPHA] X +3) [ALPHA][CALC] (=) 2*(7*[ALPHA] X + 6).
The [ALPHA][CALC] (=) is the = sign on the top left corner of the calculator, under (below) the [SHIFT key.
If you press [SHIFT]CALC] (SOLVE) just after entering the function, you will be asked a question Solve for X You will not be prompted for anything because all you coefficients are numbers. The equation will remain in memory until you turn calculator OFF.
Hope it helps.
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Posted on Nov 30, 2009
Refer to page 12 of the manual under Inputting expressions and values. It is pretty straight forward if you need further assistance please let me know.
Posted on Nov 17, 2009
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Posted on Jan 02, 2017
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