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BartSMP [9]
2 years ago
8

Y=2x+5 and y=3x+11 solve by substitution.

Mathematics
1 answer:
kondaur [170]2 years ago
6 0

Answer:

Answer: x= -6 and y= -7

Step-by-step explanation:

Substitute 2x+5 for y in y=3x+11:

y=3x+11

2x+5=3x+11

2x+5+−3x=3x+11+−3x(Add -3x to both sides)

−x+5=11

−x+5+−5=11+−5(Add -5 to both sides)

−x=6

−x−1=6−1(Divide both sides by -1)

x=−6

Step: Substitute −6 for x in y=2x+5:

y=2x+5

y=(2)(−6)+5

y=−7(Simplify both sides of the equation)

-Source: MathPapa

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(-5x2 – 43 – 1) +(-4x2 – 4x)
emmainna [20.7K]

Answer:

−9x 2 -44-4x

Step-by-step explanation:

1 Simplifica  -5{x}^{2}-43-1−5x

2

−43−1  a  -5{x}^{2}-44−5x

2

−44.

-5{x}^{2}-44-4{x}^{2}-4x

−5x

2

−44−4x

2

−4x

2 Colecciona los términos semejantes.

(-5{x}^{2}-4{x}^{2})-44-4x

(−5x

2

−4x

2

)−44−4x

3 Simplifica.

-9{x}^{2}-44-4x

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listo  espero te halla ayudado

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2 years ago
What are the next three terms in this pattern 1,2,4,8
ivann1987 [24]
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2 years ago
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How do you figure out 9a divide by a
Nikitich [7]

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8 0
2 years ago
Question 28 of 42
lina2011 [118]

Answer with explanation:

Properties of Rectangle

1. Opposite sides are equal and parallel.

2. Diagonals are equal and bisect each other.

3. Adjacent Sides are Perpendicular to each other.

→If two lines are parallel their slopes are equal and if two Lines are perpendicular, their product of slopes is -1.

→A Rectangle is a Quadrilateral also.

→Adjacent sides are perpendicular ,so , their slopes can't be equal.Product of their slopes should be equal to ,-1.

⇒Slope of AB × Slope of BC = -1

⇒Also, Slope of AB × Slope of BC = -1

Slope of AB × Slope of AD = -1

⇒ Slope of AD × Slope of CD = -1

Slope of CB × Slope of CD = -1

Option B And Option C

are statement which proves that polygon ABCD is not a rectangle.

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3 years ago
Which property can be used to solve the equation?
frosja888 [35]

Answer:

C

Step-by-step explanation:

You are dividing, if you think about it every time I do it is the opposite of your equation. Plus you are supposed to multiply on both sides to get the value of d.

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2 years ago
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