Question

9 added to twice the sum of 4 and x gives 31​

Answer 1

Answer:

X= 6

Step-by-step explanation:

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Answer 2

Answer:

Let "a whole number" = x

twice a whole number: 2x

adding 9 to twice a whole number: 2x + 9

gives 31: = 31

2x + 9 = 31

Isolate the x. Do the opposite of PEMDAS. Note the equal sign. What you do to one side, you do to the other.

First subtract 9 from both sides

2x + 9 (-9) = 31 (-9)

2x = 31 (-9)

2x = 22

Next, divide 2 from both sides

2x/2 = 22/2

x = 22/2

x = 11

11 is your whole number

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