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vesna_86 [32]
2 years ago
6

12x+3=15x show how u got the answer

Mathematics
2 answers:
elixir [45]2 years ago
7 0

Answer:

x = 1

Step-by-step explanation:

Given

12x + 3 = 15x ( subtract 12x from both sides )

3 = 3x ( divide both sides by 3 )

1 = x

Scrat [10]2 years ago
7 0

Answer: x=1

Step-by-step explanation: So we're solving for x right but slight problem x is on both sides of the equation so we have to fix this. we can subtract 12x from both sides to get 12x-12x=0 and 15x-12x=3x so now we have 3x=3 to find x divide by 3 on both sided since 3/3=1 so 3x divided by 3 equals 1x or x and 3 divided by 3 is 1 so x=1

Math

12x+3=15x

-12x     -12x

   3=3x

    /3

    1=x

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Given an equilateral triangle that has an area of 1959 cm2. What is the length of its sides?
Nina [5.8K]
Equilateral
equi means equal
lateral means sides

all sides are equal
triangle has 3 sides

perimiter=side1+side2+side3
side1=side2=side3


area=1/2 times base times height
base=side
draw a line down the middle of te tiangle so you get 2 right triangles side by side
1/2base is one leg
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height is unknown
equilateral means that it is a 30-60-90 triangle with  hypotonuse equal to 2x, height=x√3, bottom is x
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legnth of each side is 2\sqrt{ \frac{3918}{ \sqrt{3} } }cm or about 95.12222 cm
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