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Maurinko [17]
3 years ago
11

Solve for x. 7 - (2x + 11) + 3(3 - x) = 20 7/5 -3 -4

Mathematics
1 answer:
mr Goodwill [35]3 years ago
6 0

Answer:

x = -3

Step-by-step explanation:

You will have to distribute first

7 -2x -11 + 9 -3x = 20

Then, combine you like terms

-2x -3x = -5x

7 -11 +9 =5

Then you write it as an equation

-5x +5 = 20

Next you will want to have x by itself which means you have to get rid of the 5 by substracting 5 on each side (opposite of addition is substraction)

-5x = 15

Then you divide each side by -5 ( opposite of multiplication is division)

x= -3

Hope this helped :D

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B has the equation -2 + 7 = -5
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D has the equation 5 + (-7) = -2
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Answer:

See description below.

Step-by-step explanation:

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2 years ago
How much bigger is the Sum of first 50 even numbers than the sum of first 50 odd numbers?
Lunna [17]

Answer:

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Step-by-step explanation:

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n = 50

d = 2

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an = a1 + (n-1)d

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an = 2 + 49 * 2

an = 2 + 98

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