Respuesta :

ilovecats9573ozkvsq
X+11=2x-12
Rearrange to solve for x
2x-x=11+12
X=23
Hope this helps!
abidemiokin

The unknown number from the expression is 22

Let the unknown number be "x"

If the number is increased by 11, this is expressed as x + 11

Twice the number decreased by 12 is expressed as 2x - 11

Equating both results

x + 11 = 2x - 11

x - 2x = -11-11

-x = -22

x = 22

Hene the unknown number from the expression is 22

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