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lisov135 [29]
4 years ago
9

Melody is solving the equation x +12=31. Find her mistake and correct it

Mathematics
2 answers:
harkovskaia [24]4 years ago
8 0

Answer:

You need to subtract 31 from 12 to get what x is. Melody added instead of subtracting.

Step-by-step explanation:

kati45 [8]4 years ago
7 0
I just see an equation hmmm could it be the x.

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50 points :] !!
nasty-shy [4]

Given,

LP = 15, PR = 9

Point P lies on the line segment PR. It would mean that,

LP + PR = LR

⇒LR = 15 + 9

⇒ LR = 24

Hence, "LR = 24 because LP + PR = LR according to the Segment Addition Postulate, and 15 + 9 = 24 using substitution" is the correct option.

6 0
3 years ago
The sum of 7 times a number and 23 is equal to 79.
AlladinOne [14]
<h2>ANSWER:</h2>

LET THE NUMBER BE "X"

7x-12=5(x+2)

7x-12=5x+10

7x-5x=10+12

2x=22

x=22÷2

x=11

<h2 />

3 0
3 years ago
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valentina_108 [34]
You said it. Mary is 16 years old.
6 0
4 years ago
Please help me!!!!!! I do not understand...
Tems11 [23]

Answer:

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6 0
3 years ago
HELP ME PLEASE...................................
In-s [12.5K]
The answer would be B
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