Solve the following equation by trial and error method: y + 9 = 1… - Vidyadip

Question

Solve the following equation by trial and error method:
y + 9 = 13

✓

Answer

The given equation is y + 9 = 13
We try several values of y and find L.H.S. and the R.H.S. and stop when L.H.S. = R.H.S.

y	L.H.S.	R.H.S.
2	2 + 9 = 11	13
3	3 + 9 = 12	13
4	4 + 9 = 13	13

When y = 4, we have L.H.S. = R.H.S.
So y = 4 is the solution of the given equation.

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