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Vikentia [17]
3 years ago
5

I need to know what x equals

Mathematics
1 answer:
taurus [48]3 years ago
8 0

Answer:

x = 7

Step-by-step explanation:

4 + 5(x + 2) = 7x

4 + 5x + 10 = 7x

5x - 7x = - 4 - 10

- 2x = - 14

- x = - 14/2

- x = - 7

x = 7

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Phantasy [73]

Answer:

The answer is B

Step-by-step explanation:

I did rise over run

5 0
3 years ago
Read 2 more answers
Is the relationship shown by the data linear? How can you tell if it is or is not? If so, model the data with an equation.
yuradex [85]

Hello from MrBillDoesMath!

Answer:    The relationship is linear. The equation is y = 2x + 19

Discussion:

When x changes from -7 to -5 ( and increment of of +2),  y changes from 5 to 9 ( an increment of +4). When x changes from 5 to -3 (an increment of +2) , y changes from 9 to 13 (an increment of +4)... and so on.....

So far, when x changes by 2, y changes by 4.  This means the data falls on a line (so is linear). In fact,

(change in y) /  (change in x) = 4/2 = 2 =  slope of line.

so  y = 2x + b. As the line passes through the point ( -7, 5)

5 = 2 (-7) + b    or

5 = -14 + b       or ( adding 14 to both sides)

5 + 14 = 19  = b.

Hence the equitation the line is  y = 2x + 19

Thank you,

MrB

6 0
3 years ago
3x+2(x-5)=25 show your work
Zanzabum

Answer:

x = 7

Step-by-step explanation:

Expand 3x+2(x-5)=25 which looks like

3x+2x-10=25

Add similar elements: ( 3x+2x = 5x)

5x-10=25

Add 10 to both sides

5x-10+10 = 25 + 10

Simplfy

5x = 35

Divide both sides by 5

5x ÷ 5 = 35 ÷ 5  

Simplfy:

x = 7

have a wonderful day

8 0
3 years ago
What do you use to repair a TUBA
lina2011 [118]
 you repair it with a tuba glue!
8 0
3 years ago
ANSWER ASAP PLEASE RIGHT ANSWER GETS BRAINLIST
Natasha_Volkova [10]

Answer:

2

Step-by-step explanation:

We can set up equation for this one.

Let's say the number is X.

the sum of X and 14 can be expressed as : X+14

five times the sum of X and 14 can be expressed as 5(x+14)

and 5(X+14) = 80

5(x+14) = 80\\x+14 = 80 \div 5 = 16\\x = 16-14 = 2

The number  is 2

8 0
3 years ago
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