Write an equation that has x=3 as a solution

Mathematics

2 answers:

Damm [24]3 years ago

8 0

Answer:

(3x + 5)/2 = 7

Step-by-step explanation:

If you substitute 3 for x, you get the equation:

(3(3) + 5)/2 = 7

(9 + 5)/2 = 7

14/2 = 7

Ira Lisetskai [31]3 years ago

8 0

Answer: Infinite

Step-by-step explanation:

well a lot things can equal x=3

There are many examples so 2x=4x-6 or 3x=4x-3 or 1000x=2000x-3000 would all equal to x=3

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valina [46]

Answer:

1225miles

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3 years ago

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3 years ago

If the circumference of the circle above is 31.4 units, what is the area? (Use 3.14 for .) A. 62.8 units B. 78.5 units C. 985.96

jenyasd209 [6]

Answer:

78.5 units

Step-by-step explanation:

To find the area of a circle the formula is πr"2"

First we have to find the diameter the find the radius. We already know that the circumference is 31.4 what we have to do now is work backwards. ( 31.4 / 3.14=10) If the diameter of a circle is 10 the radius is 5. now we just have to follow πr"2" to find the area of a circle. (5"2"= 25 x 3.14= 78.5 units)

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3 years ago

What is an equivalent to -16m^2n-(-25m^2n)+(-7m^2n)

pantera1 [17]

Answer:

The equivalent expression is:

$-16m^2n-\left(-25m^2n\right)+\left(-7m^2n\right)=2m^2n$