<span>2x squared - 5
= 2(x)^2 - 5
= 2(4)^2 - 5
= 2(16) - 5
= 32 - 5
= 27</span>
Let x be the unknown number
2x +7 = 39
2x+7-7 = 39-7
2x = 32
2x/2 = 32/2
x=16
You use the balance method to solve. First, you cancel the +7 by subtracting the 7 ON BOTH SIDES to balance the equation.. After that, you are left with 2x, where you will need to isolate the x by dividing by 2 ON BOTH SIDES to balance it.
Hope this helps
Answer: 
of garden.
Step-by-step explanation:
Given: The area covered by 
of a packet of flower seeds=
of a garden.
The area covered in 1 packet=
⇒The area covered in 1 packet= of garden.
Thus, the entire packet of seeds would cover of garden.
=3*5*7 (xyz)
=15*7 xyz
=105xyz
