Hello.
Subtract 5 from both sides of the equation.
2x + 5 (-5) = 11 (-5)
Simplify
2x = 6
Divide both sides of the equation by 2.
2x (/2) = 6 (/2)
x = 3
The unknown number in the equation is 3.
Answer:
x=3
Explanation:
2x+5=11
first subtract 5 from 11
2x=6
then divide 6 by 2
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