Math, asked by ishikac235, 2 months ago

x+ x/2 =45
trial and error method
class 7 th​

Answers

Answered by vighnajitsaxena
2

Answer:

x = 30

Its not an trial and error question

Its an equation

It is 3x/2 = 45

3x = 90

So , x = 30

Step-by-step explanation:

Answered by KailashHarjo
0

Given:

x + x/2 = 45.

To Find:

The value of x.

Solution:

x + x/2 = 45.

(2x + x) / 2 = 45.

3x / 2 = 45.

3x = 45*2.

3x = 90.

x = 90/3.

x = 30.

Putting the value of x in the given equation,

x + x/2 = 45.

30 + 30/2 = 45.

(30*2 + 30) / 2 = 45.

(60 + 30) / 2 = 45.

90/2 = 45.

45 = 45.

L.H.S. = R.H.S.

Hence, the value of x is 30.

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