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Nata [24]
3 years ago
14

Please solve x/2-12=-14​

Mathematics
2 answers:
Alex787 [66]3 years ago
6 0

Answer: x=-4

Step-by-step explanation:

Add 12 to both sides

x/2=-14+12

Simplify

x/2=-2

Multiply

x=-2*2

Simplify

x=-4

solmaris [256]3 years ago
6 0
X=-16

multiply by 2 both sides
add 12 both sides
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One number is 5 times a first number. A third number is 100 more than the first number. If the sum of the three numbers is 492,
Lena [83]

Answer:

The numbers are 56, 280 and 156

Step-by-step explanation:

Let

x -----> the first number

y ----> the second number

z ----> the third number

we know that

y=5x -----> equation A

z=x+100 ----> equation B

x+y+z=492 ----> equation C

Solve the system of equations by substitution

substitute equation B and equation A in equation C and solve for x

x+5x+x+100=492

7x=492-100

7x=392

x=56

<u><em>Find the value of y</em></u>

y=5x -----> y=5(56)=280

<u><em>Find the value of z</em></u>

z=x+100 ----> z=56+100=156

therefore

The numbers are 56, 280 and 156

8 0
3 years ago
Helow. i just wanna say if ur gonna read the image in the picture then read it carefully! thx!
Diano4ka-milaya [45]

Answer:

\frac{72}{5}

Step-by-step explanation:

hope this helps!

3 0
3 years ago
Factor each completely <br> 5n^2-8n-21<br> 6r^2+53r-79<br> 4n^2-25
OLEGan [10]

5n² - 8n - 21    →    (5)(- 21) = -105    (find 2 numbers whose product is 105 and sum is -8)

= 5n² - 15n  + 7n - 21

= 5n(n - 3)  + 7(n - 3)

= (5n + 7)(n - 3)

*****************************************************

6n² + 53n - 79 → (6)( -79) = -474 (find 2 numbers whose product is -474 and sum is 53)  DOES NOT EXIST! only factors are: (1, 474) (2, 237) (3, 158) (6, 79)

= Prime

*******************************************************

4n² - 25   (this is the difference of two squares)

= √(4n²) +/- √(25)

= 2n +/- 5

= (2n + 5)(2n - 5)

3 0
4 years ago
Read 2 more answers
Can the sum of two numbers be equal to 2 explain why or why not
Vlada [557]

Answer:

no, because they need a 1 or a fraction yo be a mixed number..... I hope that helps

Step-by-step explanation:


6 0
4 years ago
Y=2write the equation of the line in slope intercept form
Tema [17]

Answer:

y = 0x + 2

Step-by-step explanation:

y = 2 is the same as y = 0x + 2. The slope of this line is zero (0) (the line is horizontal).

In slope-intercept form, the equation of this line is y = 0x + 2, which may be left as is or changed to y = 2.

5 0
3 years ago
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