3 years ago

A number increased by 4 is the same as 9 minus 2 times the number

1 answer:

Crank3 years ago

6 0

N x 4 = 9- 2n
If you are trying to make this into a number equation, this is how you do it or you can write it as 4n=9-2n

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-1/2 + 2/3 ????????????????????????????????

Free_Kalibri [48]

Answer:

2/6 or simpler 1/3

Step-by-step explanation:

6 0

4 years ago

Solve: 2/3x - 3/4 = 5 + 5/6x

Slav-nsk [51]

Answer:

$\large\boxed{x=-\dfrac{69}{2}\to x=-34\dfrac{1}{2}\to x=-34.5}$

Step-by-step explanation:

$\dfrac{2}{3}x-\dfrac{3}{4}=5+\dfrac{5}{6}x\qquad\text{multiply both sides by LCD = 12}\\\\12\!\!\!\!\!\diagup^4\cdot\dfrac{2}{3\!\!\!\!\diagup_1}x-12\!\!\!\!\!\diagup^3\cdot\dfrac{3}{4\!\!\!\diagup_1}=(12)(5)+12\!\!\!\!\!\diagup^2\cdot\dfrac{5}{6\!\!\!\diagup_1}x\\\\(4)(2x)-(3)(3)=60+(2)(5x)\\\\8x-9=60+10x\qquad\text{add 9 to both sides}\\\\8x-9+9=60+9+10x\\\\8x=69+10x\qquad\text{subtract}\ 10x\ \text{from both sides}\\\\8x-10x=69+10x-10x\\\\-2x=69\qquad\text{divide both sides by (-2)}\\\\x=-\dfrac{69}{2}$

7 0

4 years ago

What is 4 and1/5 - 2 and 3/5?

vlabodo [156]

The answer is 1 3/5.
Hope this helps!
Have a NICE DAY!

6 0

3 years ago

Read 2 more answers

The library is to be given 5 books as a gift. the books will be selected from a list of 21 titles. if each book selected must ha

Natali5045456 [20]

This is a combination problem. Order does not matter and the books are all different. You would write this as 21C5 or $\tbinom{21}{5}$ . Combinations are not fractions.