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LekaFEV [45]
3 years ago
10

Which expression is equivalent to 4x+20?

Mathematics
1 answer:
max2010maxim [7]3 years ago
4 0

Answer:

4x+20=

6x-10

Step-by-step explanation:

Simplifying: 4x + 20 = 6x + -10

Reorder the terms: 20 + 4x = 6x + -10

Reorder the terms: 20 + 4x = -10 + 6x

Solving: 20 + 4x = -10 + 6x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-6x' to each side of the equation: 20 + 4x + -6x = -10 + 6x + -6x

Combine like terms: 4x + -6x = -2x: 20 + -2x = -10 + 6x + -6x

Combine like terms: 6x + -6x = 0: 20 + -2x = -10 + 0: 20 + -2x = -10

Add '-20' to each side of the equation: 20 + -20 + -2x = -10 + -20

Combine like terms: 20 + -20 = 0: 0 + -2x = -10 + -20: -2x = -10 + -20

Combine like terms: -10 + -20 = -30: -2x = -30

Divide each side by '-2': x = 15

Simplifying: x = 15

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10=2/3n+8<br>what is n ?​
alexira [117]

The value of n in the given equation is -2.6

Step-by-step explanation:

Given,

10 = \frac{2}{3n+8}

To find the value of n

10 = \frac{2}{3n+8}

or, 10(3n+8) = 2 [ by cross multiplication]

or, 30n + 80 = 2

or, 30n = 2-80 [ taking the constant values in one side]

or, 30n = -78

or, n = \frac{-78}{30}

or, n = -2.6

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3 years ago
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What is the answer 3x+15=8x
Art [367]

Answer:

3x +15 = 8x

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Step-by-step explanation:

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Which set of angles could be the interior angles of a triangle?
Minchanka [31]

Answer:

D. 20°, 60°, and 100°

Step-by-step explanation:

basically you're testing which set adds up to 180°:

D should immediately catch the eye since it has a simple 100°, and 60+20 is 80, making D the correct answer

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2 years ago
What is the value of x in the proportion ​
siniylev [52]

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Step-by-step explanation:

Multiply by (3 3/5)x/(1 1/2):

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2 years ago
Which of the following equations is equivalent to 2/3x - 1/2y = 6?
Nostrana [21]

Answer:

4x - 3y = 36

Step-by-step explanation:

2/3x - 1/2y = 6

Multiply each side by 6 to get rid of the fractions

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