please help me solve this: 5x-(2x-10)=35----i am not coming up with a reasonable answer--or maybe i am---just needed to see what other people would get
2006-09-09 07:53:43 · 11 answers · asked by biznitchil 4 in Science & Mathematics ➔ Mathematics
5x - (2x - 10) = 35
Distribute the -1 (it's hiding right there in front of the "(" )
5x - 2x + 10 = 35
combine terms:
3x = 25
Divde by 3
x = 25/3
2006-09-09 07:59:51 · answer #1 · answered by Manny 6 · 3⤊ 0⤋
Here is a step-by-step guide:
5x-(2x-10)=35
First, take the brackets. Note that there is a negative sign before the brackets which means that all the signs are changed in that bracket, so we change all the signs and get:-
5x-2x+10=35
5x-2x is equal to 3x so we can simplify the above by saying
3x+10=35
Take ten from both sides and we get
3x+10-10=35-10
3x=25
Divide both sides by 3
3x/3=25/3
x=25/3
x=8.3333333333333etc.
Note that you can write this answer as eight and a third or as 8.3 with a dot above the three which means "recurring".
Everyone above who says the answer is 15 is wrong.
2006-09-09 16:41:39 · answer #2 · answered by me 2 · 0⤊ 0⤋
5x-(2x-10)=35
5x-(1)(2x-10)=35 <--there is an assumed 1 in front of the (2x-10)
distribute the -1.
5x-2x+10=35 <--- combine like terms
3x+10=35 <--- subtract 10 from both sides
3x = 25 <---divide by three
x = 25/3 or x= 8 1/3
2006-09-09 16:54:17 · answer #3 · answered by Katie 5 · 0⤊ 0⤋
btw, x = 25/3. WHY?
5x - 2x + 10 = 35
3x = 35 - 10
3x = 25
Hence x = 25/3 or 8 1/3.
Cheers!
Jem
2006-09-09 15:07:16 · answer #4 · answered by Siti J 1 · 1⤊ 0⤋
First combine like terms: you first get3x-10=35. Next, get rid of the -10 on the left by adding 10 to both sides: 3x=45. Now just divide both sides by 3: x=15. And that is your answer.
2006-09-09 14:59:33 · answer #5 · answered by bruinfan 7 · 1⤊ 2⤋
x=15
2006-09-09 14:55:55 · answer #6 · answered by A 4 · 0⤊ 2⤋
Simplifying, 3x+10=35, or 3x = 25, or x = 8.333.
2006-09-09 15:03:18 · answer #7 · answered by Anonymous · 1⤊ 0⤋
5x - (2x - 10) = 35
5x - 2x = 45
3x = 45
x = 15
2006-09-09 14:58:13 · answer #8 · answered by Chris 3 · 0⤊ 2⤋
5x-(2x-10)=35
5x-2x+10=35
3x=35-10
3x=25
x=25/3
x=8.333
2006-09-09 15:23:55 · answer #9 · answered by Joven G 2 · 1⤊ 0⤋
x=25/3 is the right answer.
2006-09-09 15:02:01 · answer #10 · answered by Tejas 2 · 1⤊ 0⤋