Seudónimo Seudónimo

21-11-2020
Mathematics

contestada

Solve 7x – 9 = 28 + 4(x – 1).
A.x = 11
B.x = -11
C.x = -3

Respuesta :

laibaharoon laibaharoon

21-11-2020

Answer:

x=11

Step-by-step explanation:

7x-9=28+4(x-1)

7x-9=28+4x-4

7x-9=24+4x

7x-9-4x=24

3x-9=24

3x=24+9

3x=33

x=33/3

x=11

Answer Link

yrajkumari yrajkumari

21-11-2020

7x -9= 28 + 4x-4

7x -9=24+4x

7x-9+9=24+9+4x

7x- 4x= 33 + 4x-4x

3x/3=33/3

X=11

Hope this helps!

Answer Link

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