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
Step-by-step explanation:
2x+5=11
first subtract 5 from 11
2x=6
then divide 6 by 2
8x + 3 ≠ 0
8x ≠ -3
x ≠
Interval Notation: (∞, ) U ( , ∞)
If (3)
x+y
=81 and (81)
x−y
=3, then the values of x and y are 17/8 and 15/8
