caitlindawson5 caitlindawson5

20-04-2021
Mathematics

contestada

Solve
7+x/3 = 2x-5
Give all working out

Respuesta :

ghostface1 ghostface1

20-04-2021

X = 36/5
Or x = 7.2

21 + x = 6x - 15
21 = 6x - 15 - x
21 = 5x - 15
21 + 15 = 5x
36 = 5x
36/5 = x

Answer Link

chlobug725 chlobug725

20-04-2021

7+x/3 = 2x-5

multiply both sides by 3

21+x =6x-15

move the 6

21+x-6x = -15

move the 21

x-6x = -15-21

combine like terms

-5x = -15-21

divide both sides:

-5x = -36

answer: x = 36/5

Answer Link

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