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What is x in x -3x plus 7 equals 28?

Updated: 9/26/2023

Wiki User

∙ 7y ago

Best Answer

x - 3x + 7 = 28

Collect the x together: x - 3x = (1-3)x = -2x

→ -2x + 7 = 28

Collect the numbers together - subtract 7 from both sides

→-2x = -21

Divide both sides by -2 to get what one x is:

x = -10.5

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∙ 7y ago

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What mistake was made in this equation 3x plus 7 equals -4x plus 28 -x plus 7 equals 28 -x equals 21 x equals -21?

3x + 7 = -4x + 28 implies 7x + 7 = 28

What is the answer to 3x plus 6 plus 7 equals -28?

x=-5

What is 3x plus 6 plus 7 equals 28?

x = 5

What is 4x plus 7 plus 3x equals 19 plus x?

4x plus 7 plus 3x equals 19 plus xx = 2

What is 3x plus 7y if x equals 6 y equals 4?

3x + 7y = 3*x + 7*y = 3*6 + 7*4 = 18 + 28 = 46

Related questions

What mistake was made in this equation 3x plus 7 equals -4x plus 28 -x plus 7 equals 28 -x equals 21 x equals -21?

3x + 7 = -4x + 28 implies 7x + 7 = 28

What is the answer to 3x plus 6 plus 7 equals -28?

x=-5

What is 3x plus 6 plus 7 equals 28?

x = 5

3x-7 plus 4x equals 28?

3x - 7 + 4x = 28 7x - 7 = 28 I added 4x and 3x to get 7x 7x = 35 I subtracted 7 from both sides x = 5 I divided by 7 on both sides

What is 4x plus 7 plus 3x equals 19 plus x?

4x plus 7 plus 3x equals 19 plus xx = 2

What is 3x plus 7y if x equals 6 y equals 4?

3x + 7y = 3*x + 7*y = 3*6 + 7*4 = 18 + 28 = 46

What is the answer to 3x plus 7 equals 4x?

3x+7=4x 7=4x-3x 7=x

3x plus 7 equals 37 x equals?

3x+7=37 -7 -7 3x=30 /3 /3 x=10

What is 3x equals 2y plus 7 in standard form?

3x + 2y = 7

What is 3x plus 7 13?

In the equation 3x plus 7 equals 13, x is equal to 2.

X² -3x - 28 equals?

-31

What is the answer to 3x plus 7 equals 3?

if 3x+7 = 3 then 3x = 3-7 3x = -4 then, x = -4/3

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