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Vlada [557]
3 years ago
12

How would i solve 15=x+7

Mathematics
2 answers:
lakkis [162]3 years ago
8 0

Answer:

15-7=8

Step-by-step explanation:

you will have to use inverse operation

kipiarov [429]3 years ago
8 0

Answer:

15=x+7

Step-by-step explanation:

This is a basic algebra problem. In order to solve this you have realize what kind of equation this is. This equation is asking for both sides to be equal. In order to do that you have to subtract 7 from 15 to find what x equals.

15=x+7

-7    -7

15-7=x+7-7

8=x

This means that in this equation, x equals 8. Plug it back in to check.

15=8+7

15=15. This works perfectly!!!

Let me known if you need more information and i'll try my best to answer!

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Help on this one as well ii manged to get an answer but If you understand it or im wrong an you please explain ! thank you !!
AnnZ [28]
Almost got it!

x + 3 = 3(y + 2)/2 [Multiplied both sides by 3]
so x + 3 = (3y + 6)/2
2(x + 3) = 3y + 6 [Multiplied both sides by 2]
2x + 6 = 3y + 6
2x = 3y [Subtracted 6 from both sides]
x = 3y/2 [Divided both sides by 2]
x/3 = y/2 [Divided both sides by 3]

So you wrote y/3 instead of y/2 
Hope this helped!
8 0
3 years ago
Read 2 more answers
Shira has 20 books on her bookshelf. Of those 15 are about horses, the rest are nature books. What fraction of Shiras books are
givi [52]

Answer:

1/4

Step-by-step explanation:

15 out of the 20 books are horses. 5 of those are nature. 5/20 is the fraction, but can be simplified to 1/4

6 0
3 years ago
Can someone please help me with this question, thank you! :)
loris [4]

Answer:

14

Step-by-step explanation:

Sure thing, just use PEMDAS!

(Simplify first so that 24/4 = 6)

2 x 1 + 2 x 6

2 + 2 x 6

2 + 12

14

5 0
3 years ago
Read 2 more answers
Estimate it as a whole number
denis-greek [22]

Answer:

2

Step-by-step explanation:

First, you do the subtraction 120-21.4 which is 98.7. So since you know its x^7, the number isn't going to be big. By guessing and checking, we start with 2. 2^7 is 128. We know that 1^7 would just be 1, so the closest whole number would be two.

7 0
3 years ago
A
KATRIN_1 [288]

Answer:

D. Zacpszcap. is probably the answer

7 0
3 years ago
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