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melisa1 [442]
3 years ago
13

5x + 9 = 10x - 9 How do I solve this?

Mathematics
2 answers:
tester [92]3 years ago
8 0

Step-by-step explanation:

10x-5x=9+9 (switching sides, x at one side and number at other side)

5x=18 (calculate)

x=18/5 (division by 5 on both sides)

hope this will help you ❤️

dangina [55]3 years ago
6 0
5x+9 = 10x-9
Take 5x from both sides
9 = 5x-9
Add 9 to both sides
18 = 5x
Divide by 5
3.6=x
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(3x+2)∧2=9 how do i solve this in the square root property
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Read 2 more answers
7/2x+1/2x = 18+ 9/2x
chubhunter [2.5K]

Answer:

x=-36

Step-by-step explanation:

Add the 7/2x +1/2x to be 8/2x which means that it'll be 4x=18=9/2

then subtract 9/2x on both sides so itll be

4x=18+\frac{9}{2} x

-9/2x       -9/2x

-\frac{1}{2} x=18   because if you do 8/2-9/2 it's -1/2

then multiply the reciprocal to both sides so

(\frac{2}{-1})(-\frac{1}{2}x)=(\frac{2}{-1})(18)

which then cancels out -1/2 and makes it

x=-36

4 0
3 years ago
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