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Ne4ueva [31]
3 years ago
15

X+5=2x+2 what is x solve the equation

Mathematics
1 answer:
julia-pushkina [17]3 years ago
5 0

Answer:

3

Step-by-step explanation:

X+5=2x+2

Subtract 2 from both sides:

X+3=2x

Subtract x from both sides

3=x

x=3

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For what values of x and y is the equation (x2 + y2)2 = (x2 – y2)2 + (2xy)2 true?
denis-greek [22]

Answer:

A) all values of x, and all values of y

B) (3a + 4b) (9a² − 12ab + 16b²)

Step-by-step explanation:

(x² + y²)² = (x² − y²)² + (2xy)²

x⁴ + 2x²y² + y⁴ = x⁴ − 2x²y² + y⁴ + 4x²y²

x⁴ + 2x²y² + y⁴ = x⁴ + 2x²y² + y⁴

27a³ + 64b³

(3a)³ + (4b)³

(3a + 4b) (9a² − 12ab + 16b²)

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3 years ago
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4 0
3 years ago
Classify the angles, then find the value of x
marta [7]

Answer:

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Step-by-step explanation:

4 0
3 years ago
Jeff has a density of 1000 g/mL and a volume of 25-mL. What is Jeff’s mass?
zlopas [31]

Answer:

25,000 grams

Step-by-step explanation:

Density can be found using the following formula:

d=\frac{m}{v}

If we rearrange the formula for m, mass, we will multiply both sides of the equation by v.

d*v=\frac{m}{v}*v

d*v=m

The mass can be found by multiplying the density by the volume.

Jeff's density is 1000 grams per milliliter and his volume is 25 milliliters.

d= 1000 g/mL\\v=25 mL

Substitute the values into the formula.

m=d*v

m= 1000 g/mL * 25 mL

Multiply. When you multiply, the "mL" or milliliters will cancel out.

m= 1000 g * 25

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Jeff's mass is 25,000 grams.

6 0
3 years ago
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Answer:

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Step-by-step explanation:

I just answered this

it will equal -6x

good luck :)

5 0
3 years ago
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