What is the answer to 4y+2x=150 when you have to find x?

6 Answers

• rideabike

  1 month ago

  given:

  4y+2x=150

  y=2x

  Substitute y for 2x in the first equation

  4*(2x)+2x=150

  8x + 2x = 150

  10x = 150

  x = 15

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• EmeraldElement

  1 month ago

  Since y=2x you can replace y with 2x in the first equation. (substitution)

  4(2x) + 2x = 150

  Then multiply the 4 and 2 to get 8x and add the like terms.

  8x + 2x = 150

  10x = 150

  Then divide by 10 on both sides, the left side is left with just x and your answer on the right.

  10x/10 = 150/10

  x = 15

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• ?

  1 month ago

  [1]4y + 2x = 150

  [2] y = 2x

  substitute y (from [2]) into [1]

  4(2x) + 2x = 150

  8x + 2x = 150

  10x = 150

  x = 15

  y = 2(15) – (from [2])

  y = 30

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• Anonymous

  1 month ago

  4y + 2x = 150 ………. (1)

  Now, y = 2x. Substitute y into equation (1).

  4( 2x ) + 2x = 150

  8x + 2x = 150

  10x = 150

  So; x = 150 / 10

  x = 15

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• khushboo

  1 month ago

  x= 15

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• dan

  1 month ago

  y=2x————–eqn1

  4y+2x=150

  4(2x)+2x=150 {from eqn1}

  10x=150

  x=15

  all wha we got to do is substitute the value of y in the given equation

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