Question
Solve the following equation by trial and error method:
3y = 36
3y = 36
✓
Answer
The given equation is 3y = 36
We guess and try several values of y to find L.H.S. and R.H.S. and stop when L.H.S. = R.H.S.
When y = 12, we have L.H.S. = R.H.S
So y = 12 is the solution of the given equation.
We guess and try several values of y to find L.H.S. and R.H.S. and stop when L.H.S. = R.H.S.
| y | L.H.S. | R.H.S. |
| 7 | 3 × 7 = 21 | 36 |
| 9 | 3 × 9 = 27 | 36 |
| 10 | 3 × 10 = 30 | 36 |
| 12 | 3 × 12 = 36 | 36 |
So y = 12 is the solution of the given equation.
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