charles1p charles1p
  • 03-09-2021
  • Mathematics
contestada

Given: X= Y-8
X= 2 Y
Solve for X.

Respuesta :

preciousnosipho80
preciousnosipho80 preciousnosipho80
  • 06-09-2021

Answer:

X=Y-8

also X=2Y

X= Y-8........... equation 1

X=2Y.............. equation 2

Substitute equation 1 into equation 2

Y-8=2Y

Y-2Y= 8

-Y×-1 =8×-1

Y= -8

then substitute Y=-8 to the equations

X=2(-8)

X=-16

X=-8-8

X=-16

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