Question
Solve the following equations by trial and error method:
2x + 4 = 3x
2x + 4 = 3x
✓
Answer
2x + 4 = 3x
Here, L.H.S. = 2x + 4 and R.H.S. = 3x
Therefore, if x = 4, L.H.S. = R.H.S.
Hence, x = 4 is the solution to this equation.
Here, L.H.S. = 2x + 4 and R.H.S. = 3x
|
x
|
L.H.S.
|
R.H.S.
|
Is L.H.S. = R.H.S.
|
|
1
|
2(1) + 4 = 6
|
3(1) = 3
|
No
|
|
2
|
2(2) + 4 = 8
|
3(2) = 6
|
No
|
|
3
|
2(3) + 4 =10
|
3(3) = 9
|
No
|
|
4
|
2(4) + 5 = 12
|
3(4) = 12
|
Yes
|
Hence, x = 4 is the solution to this equation.
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