dokea24 dokea24
  • 12-09-2020
  • Mathematics
contestada

-3x + 7= 28
what does x equal

Respuesta :

jotarokujo36
jotarokujo36 jotarokujo36
  • 12-09-2020
-3x+7=28
1st step move the seven to the other side of the equal sign and change it from positive to negative like this
-3x=21
Step 2 divide 21 by -3 and the answer will be -7
Answer Link
shownubear1992
shownubear1992 shownubear1992
  • 12-09-2020

Answer:

x = -7

Step-by-step explanation:

[tex]-3x+7=8[/tex] subtract 7 on both sides

[tex]-3x=21[/tex] divide -3 into both sides

[tex]x=-7[/tex]

To check

-3(-7) = 21 + 7=28

Answer Link

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