lavi21 lavi21
  • 18-10-2020
  • Mathematics
contestada

-12x+(-4)=56
-2.1x+(-3.9)=10.8

Respuesta :

jtlawrie
jtlawrie jtlawrie
  • 18-10-2020

Answer:

X=-5

X=-7

Step-by-step explanation:

-12x+(-4)=56

rewrite the equation to -12x-4=56

add 4 to both sides

-12x=60

Divide by -12 on both sides

x=-5

-2.1x+(-3.9)=10.8

-2.1x-3.9=10.8

-2.1x=14.7

divide by -2.1 on both sides

x=-7

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