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bogdanovich [222]
3 years ago
13

What does x equal in x plus 6 =2x plus 3

Mathematics
2 answers:
Anuta_ua [19.1K]3 years ago
4 0

Answer:

x = 3

Step-by-step explanation:

x + 6 = 2x + 3 \\ subtract \: 2x \: from \: both \: sides \\  \\  -1x + 6 = 3 \\ subtract \: 6 \: from \: both \: sides \\  \\  - 1x =  - 3 \\  divide \: both \: sides \: by \:  - 1 \\  \\ x = 3

fenix001 [56]3 years ago
4 0

Answer:

3

Step-by-step explanation:

x + 6= 2x + 3

what you would do to find the answer is first subtract the coeffcient 2 on both sides of the equation. ( Subtract the 2 under 2x for the right side of the equation and subtract 2 under the x on the left side. ) Then you would subtract 6 on both sides. (subtract 6 under the 6 on the left side of the equation and subtract 6 under the number 3 on the right side of the equation)

so that would give you -x = -3 However you would have to eliminate the x on the right side of the equation and so you would divide positive x (also known as 1x) on both sides. -1x/-1 = -1  and -3/-1 = 3

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Eugene and three of his friends went out to eat. They decided to split the bill evenly. Each person paid $11. What was the total
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Step-by-step explanation:

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Nat2105 [25]

Answer:

For 3x^2+4x+4=0

Discriminant= = -32

The solutions are

(-b+√x)/2a= (-2+2√-2)/3

(-b-√x)/2a= (-2-2√-2)/3

For 3x^2+2x+4=0

Discriminant= -44

The solutions

(-b+√x)/2a= (-1+√-11)/3

(-b-√x)/2a= (-1-√-11)/3

For 9x^2-6x+2=0

Discriminant= -36

The solutions

(-b+√x)/2a= (1+√-1)/3

(-b-√x)/2a= (1-√-1)/3

Step-by-step explanation:

Formula for the discriminant = b²-4ac

let the discriminant be = x for the equations

The solution of the equations

= (-b+√x)/2a and = (-b-√x)/2a

For 3x^2+4x+4=0

Discriminant= 4²-4(3)(4)

Discriminant= 16-48

Discriminant= = -32

The solutions

(-b+√x)/2a =( -4+√-32)/6

(-b+√x)/2a= (-4 +4√-2)/6

(-b+√x)/2a= (-2+2√-2)/3

(-b-√x)/2a =( -4-√-32)/6

(-b-√x)/2a= (-4 -4√-2)/6

(-b-√x)/2a= (-2-2√-2)/3

For 3x^2+2x+4=0

Discriminant= 2²-4(3)(4)

Discriminant= 4-48

Discriminant= -44

The solutions

(-b+√x)/2a =( -2+√-44)/6

(-b+√x)/2a= (-2 +2√-11)/6

(-b+√x)/2a= (-1+√-11)/3

(-b-√x)/2a =( -2-√-44)/6

(-b-√x)/2a= (-2 -2√-11)/6

(-b-√x)/2a= (-1-√-11)/3

For 9x^2-6x+2=0

Discriminant= (-6)²-4(9)(2)

Discriminant= 36 -72

Discriminant= -36

The solutions

(-b+√x)/2a =( 6+√-36)/18

(-b+√x)/2a= (6 +6√-1)/18

(-b+√x)/2a= (1+√-1)/3

(-b-√x)/2a =( 6-√-36)/18

(-b-√x)/2a= (6 -6√-1)/18

(-b-√x)/2a= (1-√-1)/3

6 0
3 years ago
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