bubbles2005 bubbles2005
  • 11-09-2019
  • Mathematics
contestada

Solve for x: 7(x - 2) = 5(x + 4)

Respuesta :

Аноним Аноним
  • 11-09-2019

7(x - 2) = 5(x + 4)

Multiply the first bracket by 7

(7)(x)=7x

(7)(-2)=-14

Multiply the second bracket by 5

(5)(x)=5x

(5)(4)=20

7x-14=5x+20

Move 5x to the other side. Sign changes from -5x to +5x.

7x-5x-14=5x-5x+20

7x-5x-14=20

2x-14=20

2x-14+14=20+14

2x=34

Divide both sides by 2

2x/2=34/2

Answer: x=17

Answer Link
helloww
helloww helloww
  • 11-09-2019

Answer:

7(x-2)=5(x+4)

7x-14=5x+20

7x-5x=20+14

2x=34

x=17

Answer Link

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