Answer:
x = -9
Step-by-step explanation:
12 + 2x + 24 = 27 + x
(12 + 24) + 2x = 27 + x
36 + 2x = 27 + x
subtract 27 from both sides
36-27 + 2x = 27-27 + x
9 + 2x = x
subtract x from both sides
9 + x = 0
subtract 9 from both sides
x = -9
(the steps could've been faster but that shows the most work)
check:
12 + 2(-9) + 24 = 27 + (-9)
36 - 18 = 18
18 = 18
True!
so -9 is correct
Step-by-step explanation:
step 1. 1 3/4 - p > 1/2
step 2. 7/4 - p > 2/4. get common denominators
step 3. -p > -5/4. subtract 7/4 from both sides
step 4. p < 5/4 divide by -1. remember to switch the arrow when you divide by a negative number
step 5. so the answer is anything less than 5/4 which means 9/8, 7/8, 1/4.
Answer:
Here's some help!
Step-by-step explanation:
Hey, I've been in this situation before, once you get the hang of it, it's super easy!
You can rewrite the equation like this, 5x + 3 = 7 (It's still the same equation, don't worry!)
The way the problem would go ,,
5x + 3 = 7
-3 -3
5x/5 = 4/5
x = 0.8
You have to reverse the second number into the opposite, for example if it was +9, we would change it to -9 and subtract from both sides.
On the first number, we bring it down and put the same number under that number and do the same for the third number. Now, you'd divide 4 by 5 and get x! If that was confusing, just tell me!!!
Answer: 1/4
Step-by-step explanation:
In a group of 84 kids 3/7 brought their lunches. This means that the number of kids that bought their lunches will be 3/7 ×total number of kids
= 3/7 × 84 = 36 kids
Of those who bought their lunches 9 got a slice of pizza. This means that 9 kids out of 36 got a slice of pizza.
Fraction of the students who bought their lunches and got a slice of pizza will be the number of students who bought their lunches and got a slice of pizza / the total number of students that bought their lunch. This becomes
9/36 = 1/4