Question

9 added to twice a number gives 13.find the number

Answer 1

The number is 2
Let us the number as x
Twice of x=2x
9 added to twice of x=2x+9
Result is 13
2x+9=13
Transpose 9 to R.H.S
2x=13-9
2x=4
Transpose 2 to R.H.S
x=4/2
x=2


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