Solve for x. 16x – 3(4x + 5) = 2x + 9
2 answers:
To solve for x, you need to isolate/get the variable "x" by itself in the equation:
16x - 3(4x + 5) = 2x + 9 Distribute -3 into (4x + 5)
16x + (-3)4x + (-3)5 = 2x + 9
16x - 12x - 15 = 2x + 9 Combine like terms (terms that have the same variable and power/exponent), which are 16x - 12x, as they have the same variable "x" and a power/exponent of 1.
4x - 15 = 2x + 9 Subtract 2x on both sides
4x - 2x - 15 = 2x - 2x + 9
2x - 15 = 9 Add 15 on both sides
2x - 15 + 15 = 9 + 15
2x = 24 Divide 2 on both sides to get "x" by itself
x = 12
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Answer:
The the angle which the wire make with the ground is 1.280 radian .
Step-by-step explanation:
Given as :
The length of the wire attached to the top of building = OB = 70 foot
The distance of wire anchored from base of ground = OA = 20 feet
Let the angle made by wire en and ground = Ф
Now from , In Triangle AOB
Cos angle =
Or, Cos Ф =
or, Cos Ф =
Or, Cos Ф =
∴ Ф =
I.e Ф = 73.39°
Now in radian ,
∵ 180° = radian
∴ 73.39° = × 73.39°
= × 73.39° = 1.280 radian
Hence The the angle which the wire make with the ground is 1.280 radian . Answer
The equation is
The solved equation is 11
First, we must add 13 on both sides
The answer to the equation is