Could ya'll help me with this here math problem? It's only 7th grade pre-algebra. If you can give me the answer while ALSO telling me how to do it, it would be appreciated! Replace all ? with answers.
x + 21 = 65
x + 21 - ? = 65 - ?
x = ?
Thanks in advance!
2006-09-04 09:36:20 · 5 answers · asked by Brian.E 2 in Education & Reference ➔ Homework Help
This is an equation so to solve it you must keep both sides of the equals sign equal. Therefore:
1. subtract 21 from both sides.
2. x + 21 - 21 = 65 -21
3. now 21 - 21 = 0
and on the other side 65 - 21 = 44
4. so, x + 0 = 65 - 21, therefore
5. x = 44
6. now go back and put in 44 for x in the original equation and see if it balances, which it does.
2006-09-04 09:52:48 · answer #1 · answered by wealthmaster 3 · 0⤊ 0⤋
Ok RedNeck...try this
x + 21 = 65
Subtracting 21 from each side of the equation,
x + 21 - 21 = 65 -21
x = 44
Good luck!
2006-09-04 10:19:14 · answer #2 · answered by alrivera_1 4 · 0⤊ 0⤋
x+21=65
x+21-21=65-21
x=44
2006-09-04 09:42:16 · answer #3 · answered by raj 7 · 1⤊ 0⤋
x+21=65 ............. origional equation
x+21-21=65-21 .............. subtact 21 from each side, the 21's on the left side the eqation cancel each other out because 21-21 will always=0
x=65-21.................. solve the right side
x=44 ...................... your answer
summed up: the first two ? are 21 and the last is 44
remember that you always want to get the x on a side by itself, and you do that by transfering everything next to the x onto the other side of the =
I hope that helped :)
2006-09-04 10:22:33 · answer #4 · answered by JB 3 · 0⤊ 0⤋
X =44 is the correct answer
2006-09-04 09:57:46 · answer #5 · answered by righton 3 · 0⤊ 0⤋