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rjkz [21]
2 years ago
10

What is the solution to-5x=-75​

Mathematics
2 answers:
Norma-Jean [14]2 years ago
6 0

Answer:

x = 15

Step-by-step explanation:

Furkat [3]2 years ago
4 0

Answer:

-15

Step-by-step explanation:

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PLZ HELP weather the highest and lowest recorded temperatures for the state of texas are 120°f and –23°f. find the difference in
Firlakuza [10]

Answer:

the difference is 143

explanation

How to Find the Difference between Two Numbers. To find the difference between two numbers, subtract the number with the smallest value from the number with the largest value. The product of this sum is the difference between the two numbers. Therefore the difference between 45 and 100 is 55.

so 120-(-23) is 141

5 0
2 years ago
What should be added to both sides of this equation to solve for the variable? r + (-12) = 19
Slav-nsk [51]

Answer:

12

Step-by-step explanation:

Then the -12 and +12 will cancel out, so you're left with a clean isolated r on the left:

r -12 +12 = 19 + 12

r = 31

5 0
3 years ago
Read 2 more answers
Solve the system by elimination. . 4x-9y=-21 , -4x-3y=9
Ivan
(-3, 1)
4x-9y=-21
+-4x-3y=9
-12y= -12
y=1

4x- 9(1)= -21
4x-9=-21
+9 +9
4x= -12
x=-3
7 0
3 years ago
The answer to the question # 4
Lerok [7]

Answer: y=4

Step-by-step explanation:

In order to find y axis interception , you need to substitute the x=0 into your equation, by doing this you get 3*2^(0)+1 which is eventually equals to 4

5 0
2 years ago
Solve the problem algebraically. Clearly define all variables, write an appropriate equation, and solve.
hichkok12 [17]

Answer:

Y=8 and X=21

Step-by-step explanation:

The key to solving word (story) problems is to learn how to translate words and phrases into concise, precise math expressions (variables and operations).  Make a table and add to it as you do problems:

      is              means           =

    more than                        +

      twice                              2*x

      sum                               +

      of                            usually means multiply

     ...

Assign variables.  Try to assign variables to the values the problem asks you to find.

In this problem, there are two variables.   Let x = one number;   y = other numbers

Translate:

 "One number is 5 more than twice the other number"    means

            x          =    5    +        2     *      y

 "sum of the two numbers is 29"     means

      x   +   y                    = 29

Now, the easy math.

Use the value for x from the first equation and substitute that into the second equation:

    (5 + 2y)      +     y       =  29

     5 + 3y = 29                    (collect terms)

           3y = 24                (subtract 5 from both sides)

             y = 8

Now, put that value of y into either equation to solve for x  (Which equation is easier??)

     x + 8 = 29

       x  = 21                 (subtract 8 from both sides)

Checking (very important):

 Is 21 really 5 more than 2(8)?

      21 = 5+16     ?

      21  =  21? yes

 Is  21 + 8 = 29  ?

        29 = 29? yes

p.s., learn the process, don't just get the right answer;  there will be lots of problems that are solved the same way!

3 0
1 year ago
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