Solve for X: 15x-7=10x+13?

2008-11-16 2:45 pm
I brought the 10x over and took it away from 15x to get 5x, is that right?

回答 (14)

2008-11-16 2:54 pm
✔ 最佳答案
15x-7=10x+13

Add 7-10x to both sides

15x-7+7-10x=10x+13+7-10x

ie. 15x-10x+7-7 = 10x-10x+13+7
ie. 5x = 20

Hence, x = 4
2008-11-16 2:48 pm
15x-10x = 13+7
5x = 20
x = 4
2016-10-25 7:33 pm
ok: First distribute the 5 on the left: 5x+5=6-2(5x+7) Then, distribute both on the right: 5x+5=6-10x-14 combine like words on the right: 5x+5=-10x-8 upload 10 x to both area to remove the 'x' time period from the right" 15x+5=-8 Subtract 5 from both area: 15x=-13 Divide both area with the help of 15 to isolate the x: x = -13/15 do no longer be petrified of a peculiar searching fraction like that
2008-11-17 7:43 am
5x = 20
x = 4
2008-11-16 2:57 pm
15x - 7 = 10x + 13
15x - 10x = 7 + 13
5x = 20
x = 20/5
x = 4
2008-11-16 2:54 pm
15x-10x=7+13
5x=20
x=20/5
x=4
參考: from my opinion
2008-11-16 2:50 pm
15x - 7 = 10x + 13

15x - 10x = 13 + 7

5x = 20

x = 20/5

x = 4
2008-11-16 2:50 pm
15x - 7 = 10x + 13

your goal is to get x by itself so

first you subtract 10x from both sides

5x - 7 = 13

add seven to both sides

5x = 20

then solve
2008-11-16 2:49 pm
x=4
2008-11-16 2:48 pm
15x-7=10x+13
15x-10x=13+7
5x=20
x=20/5
x=4

I hope I helped you


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