3 years ago

Select the correct answer from each drop-down menu.

Mathematics

1 answer:

Illusion [34]3 years ago

6 0

Answer:

-2(57+8) = 14 + 6x

step 1 -2 x 57 and -2 x 8 =

step 2 -114-16 = 14 + 6x

+16 +16

step 3 -114 = 30 + 6x

-30 -30

step 4 -144 = 6x

-144/6 6/6

x = -24

-2(5x + 8) = 14 + 6x

step 1 -2 x 5x and -2 x 8 =

-10x - 16 = 14 + 6x

step 2 -6x -6x

-16x -16 = 14

step 3 +16 +16

-16x = 30

step 4 -16/-16 30/-16

x= -15/8

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Step-by-step explanation:

Suppose that $r+s$ is a rational number. Then $r$ and $r+s$ can be written as follows

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This is a contradiction because we assumed that $s$ is an irrational number.

Then $r+s$ must be an irrational number.

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