It’s a or 1/4 beacuse only one part of it is shaded in
Answer:
3 + 4 = 7 which is true.
Step-by-step explanation:
Whenever you have an equation with a plain variable (that is, no exponent included), there is only one number that will work when substituted for x.
To solve it, you have to "undo" what is done to the variable. You also go in the reverse order of operations, so you do the addition/subtract first, then multiplication/division.
You also have to do the same to both sides, kind of like keeping a balance scale in balance.
In this case, we subtract 4 from both sides first:
3x + 4 -4 = 7 - 4
The + 4 - 4 cancel each other out, so you get:
3x = 3
3x means "3 times x" so you divide by 3 to undo it. I will use the / to indicate division:
3x / 3 = 3 /3
so 1x = 1.
Since 1x is "1 times x" it is the same as x by itself, so:
x=1
AND, if we substitute 1 back into the original equation (the asterisk stands for multiply):
3 * 1 + 4 = 7
3 * 1 is 3, so:
3 + 4 = 7 which is true.
1 is the only number that works.
Hope this helped.
This answer is highly variable. Considering that the average reading pace is 200 words per minute and the average amount of words on a page is about 275:
![275 \times 1000 = 275000](https://tex.z-dn.net/?f=275%20%5Ctimes%201000%20%3D%20275000)
![275000 \div 200 = 1375](https://tex.z-dn.net/?f=275000%20%20%5Cdiv%20200%20%3D%201375)
The average reader would take approximately 1,375 minutes or around 23 hours to read a 1000 page book, assuming there are no pauses. Again, this could vary greatly from reader to reader.