AnitaGreene AnitaGreene

31-10-2019
Mathematics

contestada

Just number 7, please help quickly I don’t know what I’m doing (if you give an explanation I’ll mark as brainliest)

Just number 7 please help quickly I dont know what Im doing if you give an explanation Ill mark as brainliest class=

Respuesta :

add123cs add123cs

31-10-2019

Answer: b

Step-by-step explanation:

x=12

12+5=17

3 times 12 is 36+10=46

46+17=63

12+51=63

They are both 63

Answer Link

jazminvalenzue jazminvalenzue

31-10-2019

Answer:

x=12

Step-by-step explanation:

x+5+3x+10=x+51

Step 1- Simplify

15+4x=x+51

Step 2- Move the variable to one side

15+4x=x+51

-1x -1x

15+3x=51

Step 3- Subtract

15+3x=51

-15 -15

3x=36

Step 4- Divide

3x=36

3 3

Conclusion-- x=12

Answer Link

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