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Question

If 3x+54+1=x+36, then the value of 'x' is

A
3
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B
- 3
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C
6
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D
- 6
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Solution

The correct option is B - 3
3x+54+1=x+36
On multiplying both sides of the equation by 12, [ LCM of 4 and 6 is 12]
we get
12[3x+54+1]=12[x+36]3(3x+5)+12=2(x+3) 9x+15+12=2x+6 9x+27=2x+6 9x2x=627 7x=21 x=217 x=3

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