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PilotLPTM [1.2K]
4 years ago
13

X+7=8 solve this one step equations

Mathematics
2 answers:
Ira Lisetskai [31]4 years ago
8 0
1+7=8. x=1 Because 8 minus 7 is 1
liubo4ka [24]4 years ago
7 0
8-7=x so then x is equal to 1
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What is the value of r in the equation -3(4r - 8)=-36
Marianna [84]

Answer:

r=5

Step-by-step explanation:

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :  

                    -3*(4*r-8)-(-36)=0  

Step by step solution :

Step  1  :

Step  2  :

Pulling out like terms :

2.1     Pull out like factors :

  4r - 8  =   4 • (r - 2)  

Equation at the end of step  2  :

 (0 -  12 • (r - 2)) -  -36  = 0  

Step  3  :

Step  4  :

Pulling out like terms :

4.1     Pull out like factors :

  60 - 12r  =   -12 • (r - 5)  

Equation at the end of step  4  :

 -12 • (r - 5)  = 0  

Step  5  :

Equations which are never true :

5.1      Solve :    -12   =  0

This equation has no solution.

A a non-zero constant never equals zero.

Solving a Single Variable Equation :

5.2      Solve  :    r-5 = 0  

Add  5  to both sides of the equation :  

                     r = 5  

One solution was found :

                  r = 5


brainliest pllzz thx god bless

3 0
3 years ago
Read 2 more answers
Answer this for me plz 5f(x)=x^3-1
svetlana [45]

Answer:

5x^3-5

Step-by-step explanation:


7 0
3 years ago
20.) Using the cross multiplication method, which of the following is the solution to 18/6x = 4/(x+3)?
Likurg_2 [28]

Answer:

B. 9

Step-by-step explanation:

7 0
3 years ago
Simplify much as possible <br><br><br><br> Pls helpppp
Aleks [24]

Answer:

-5 = <em>v</em>

Step-by-step explanation:

First you take the positive five and subtract it from -20 making it -25. Then you divide -25 by positve 5 and you get -5 making your answer -5 = <em>v</em>

4 0
3 years ago
David is the president of his student council. When the leadership team met for the first time, he asked each person to shake ev
USPshnik [31]
.............................................
3 0
3 years ago
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