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Dmitry_Shevchenko [17]
3 years ago
14

3x-71=2x-50I need the answer​

Mathematics
2 answers:
creativ13 [48]3 years ago
8 0

Answer:

x = 21

Step-by-step explanation:

3x - 71 = 2x - 50

3x - 2x = -50 + 71

x = 21

Check:

3(21) - 71 = 2(21) - 50

63 - 71 = 42 - 50

-8 = -8

Can I get brainliest

kykrilka [37]3 years ago
7 0

Answer: x=21

<u>Subtract 2x from both sides</u>

<u></u>3x-1-2x=2x-50-2x\\x-71=-50<u></u>

<u></u>

<u>Add 71 to both sides</u>

<u></u>x-71+71=-50+71\\x=21<u></u>

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Subtract (In picture)
Sonbull [250]

--First we have to simplfy

\frac{2x-8}{x^2-x-12} -\frac{x-3}{x(x+1)}

\frac{2(x-4)}{(x-4)(x+3)} - \frac{x-3}{x(x+1)}

--Cancel common factors

\frac{2}{(x+3)} -\frac{x-3}{x(x+1)}

--Here remember never cancel factors in a subtraction or addition problem

--Now Multiply each side until both denominators are equal to each other

\frac{2[x(x+1)]}{x(x+3)(x+1)} -\frac{(x-3)(x+3)}{x(x+3)(x+1)}

--Simplify

\frac{2x^2+2x}{x(x+1)(x+3)} - \frac{x^2-9}{x(x+1)(x+3)}

--Now that the denominators are the same: subtract!

\frac{2x^2+2x-(x^2-9)}{x(x+1)(x+3)}

\frac{2x^2-x^2+2x+9}{x(x+1)(x+3)}

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\frac{x^2+2x+9}{x(x+1)(x+3)}


6 0
3 years ago
I need to show the work. Please help
icang [17]

Answer:

x= 17,y = 8

Step-by-step explanation:

hope it helps

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6 0
3 years ago
Which expression is equivalent to (-8) - (-2)
gregori [183]

Answer:

-6

Step-by-step explanation:

-8  - (-2)

A negative negative is a positive

-8+2

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7 0
3 years ago
Read 2 more answers
E is the midpoint of Df, DE=2x+4, and EF=3x-1. Find all segment lengths
sertanlavr [38]
If E is the midpoint, DE and EF are equivalent.
2x+4=3x-1
4=x-1
5=x

Plug the value of x in
2(5)+4
14

3(5)-1
14

14+14=28

Final answer: DE=14, EF=14, DF= 28
6 0
4 years ago
Callan is buying a square shaped platter with an area of 169 square inches what is the correct step he should take if he wants t
bagirrra123 [75]

a = length of one side.

Area of a square = a^2

in our problem,

Area = 169 square inches

a = ?

Plug our numbers into the area formula mentioned above.

169 in^2 = a^2.

Take the square root of each side to find the side length of the square shaped platter.

13 = a

4 0
3 years ago
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