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What is a trial and error method?
Trial and Error
If you mean, solving an equation by trial and error method then:
Substituting different values of the variable and checking the equality of LHS and RHS in an equation is the trial and error method.
Let us solve the equation $4x + 5 = 17$.
We start to substitute different values of $x$.
The value for which both the sides are balanced is the required solution.
For example If we put $x = 1$ in the equation $4(1) + 5 = 9$ ≠ 17.
So let us try another value of $x, x = 3, => 4(3) + 5 = 12 + 5= 17 = 17$ or
LHS = RHS.
Hence we have solved the equation by trial and error method and the solution is $x$ = 3.
Updated on: 10-Oct-2022
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