amberjmoore23 amberjmoore23
  • 01-02-2022
  • Mathematics
contestada

help please
3x-10=56
79-y=2x
work out x and y​

Respuesta :

binimes4 binimes4
  • 01-02-2022

Answer:

3x-10=56

3x=56+10

3x=66

3x/3 = 66/3

x=11

79-y=2x

79-y=2(11)

79-y=22

79-22=y

y=57

therefore x=11 and y=57

Answer Link
ghaliazamzam ghaliazamzam
  • 01-02-2022

3x-10=56

79-y=2x    so y=-2x+79

(Solve 3x−10=56 for x):

3x−10=56

3x−10+10=56+10 (Add 10 to both sides)

3x=66

(Divide both sides by 3)

x=22

(Substitute 22for x in y=−2x+79):

y=−2x+79

y=(−2)(22)+79

y=35 (Simplify both sides of the equation)

Answer:

x=22 and y=35

Answer Link

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