2007-03-23 19:32:55 · 11 answers · asked by skizzic 1 in Science & Mathematics ➔ Mathematics
add 7 to both sides
sub 2x both sides..
u get..
x=15
2007-03-23 19:36:00 · answer #1 · answered by Anonymous · 0⤊ 0⤋
=3x-2x=8+7
=x=15
2007-03-24 03:07:24 · answer #2 · answered by punk princess 1 · 0⤊ 0⤋
Add 7 to both sides:-
3x = 2x + 8 + 7
3x = 2x + 15
Subtract 2x from both sides:-
x = 15
2007-03-24 04:06:21 · answer #3 · answered by Como 7 · 0⤊ 0⤋
1. Subtract 2x from both sides which equals x-7=8
2. Add 7 to both sides and you get the answer. Which is x = 15
2007-03-24 02:46:08 · answer #4 · answered by bubbles 2 · 0⤊ 0⤋
move all the numbers to one side and variables to one side. therefore; 3x-2x=8+7.
Keep in mind that you need to change the sign when you move one part of the equation from one side to the other (change multiplication to division, addition to subtraction etc).
3x-2x = 8+7
therefore
1x = 15
2007-03-24 02:43:11 · answer #5 · answered by tekkan 1 · 0⤊ 0⤋
yes...the answer is x = 1
3 x 1 + 7 = 10
2 x 1 + 8 = 10
2007-03-24 02:36:41 · answer #6 · answered by Anonymous · 0⤊ 0⤋
solution:3x-7=2x=8
=3x-2x=8+7
so,x=15 answer.
try doing similar questions and ask me whenever u need.best of luck!
2007-03-24 02:38:12 · answer #7 · answered by mobi 2 · 0⤊ 0⤋
3x-7=2x+8
3x-7-8=2x+8+7
3x-15>,< or =2x+15 so, x=15
2007-03-24 02:45:58 · answer #8 · answered by inderpreet k 2 · 0⤊ 0⤋
3x-7=2x+8
3x-2x=8+7
1x=15
x=15/1
x=15
When changing the figures to the left or to the right of the = sign, you also have to change the signal: plus changes to minus (and viceversa), multiplication for division (and viceversa).
2007-03-24 02:42:19 · answer #9 · answered by Anonymous · 0⤊ 0⤋
Why can't people just write the answer and stop explaining? Your wasting your time!!
Sweet and simple: it's x = 15
2007-03-24 02:55:23 · answer #10 · answered by Marissa 3 · 0⤊ 0⤋