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Black_prince [1.1K]
2 years ago
11

twice the sum of a number and 8 is equal to 3 times the difference of the number and 7 find the number ​

Mathematics
1 answer:
GaryK [48]2 years ago
4 0
The answer should be 37



2(x+8) = 3(x-7)

distribute
2x+16 = 3x-21

Subtract 2x from both sides
2x+16-2x = 3x-21-2x
16 = x-21

Add 21 to both sides
16+21 = x-21+21
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If DF=7x-3 and EG=5x+9, find the value of X
PilotLPTM [1.2K]

Answer:

x=6

Step-by-step explanation:

Using the given measurements of the angles and the lengths of the sides, we can determine that this figure must be a <u>rectangle</u>.

Diagonals of a rectangle are <em>always</em> equivalent/congruent.

We can use this information to set up an equation:

DF=EG\\7x-3=5x+9

Add 3 to both sides:

7x-3+3=5x+9+3\\7x=5x+12

Subtract 5x from both sides:

7x-5x=5x-5x+12\\2x=12

Divide both sides by 2

\frac{2x}{2}=\frac{12}{2}\\x=6

3 0
2 years ago
Can you solve 8n- 4= 52
yKpoI14uk [10]
7 is your answer sir
3 0
3 years ago
Read 2 more answers
2) Richard, Henry and Gavin share some sweets in the ratio 4:1:3. Richard gets 7 more sweets
sineoko [7]

Answer:

6

Step-by-step explanation:

Richard gets 7 more sweets than Gavin which would probably make Richard have the most so in total he should have around 8 whilst Gavin has 1 so right now we have 4:1:?. Basing off the fact that Richard would have the most sweets Henry would have to have 6 sweets to be able to divide half of it for 3. 4:1:3

5 0
2 years ago
Find the solution of y = 6x + 1 for x = 5
snow_lady [41]

Answer:

y equals to 31

Step-by-step explanation:

6(5) = 30

30+1 = 31

3 0
2 years ago
Two angles are vertical angles. One is labeled 2x. The other angle is labeled (x+30). Find the value of x.
NeX [460]

2x=x+30

-x    -x

x=30

The value of x is 30

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3 years ago
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