2006-11-19 09:19:10 · 14 answers · asked by i_heart_jake_ryan118 1 in Science & Mathematics ➔ Mathematics
7 + 3x = 6x + 25 ... subtract 3x from both sides
7 = 6x + 25 ....subtract 25 from both
-18 = 6x.....divide by three
-6 = x
2006-11-19 09:23:22 · answer #1 · answered by tomkat1528 5 · 1⤊ 0⤋
Subtract 6x on both sides:
7-3x=25
Subtract 7 on both sides:
-3x=18
x=-6
7+3(-6)=6(-6)+25
7-18=-36+25
-11=-11
2006-11-19 17:38:13 · answer #2 · answered by Anonymous · 0⤊ 0⤋
7-25=6x-3x
-18 =3x
-6=x
2006-11-19 17:37:12 · answer #3 · answered by emily 3 · 1⤊ 0⤋
7 + 3x = 6x + 25
subtract both sides by 25 and 3x
-18 = 3x
divide both sides by 3
x = -6
ANSWER
x = -6
2006-11-19 17:28:09 · answer #4 · answered by trackstarr59 3 · 1⤊ 0⤋
7 + 3x =6x + 25
7-25 + 6x-3x
-18 = 3x
-6 = x
2006-11-19 17:23:20 · answer #5 · answered by Anonymous · 1⤊ 0⤋
3x = 6x + 18
-3x = 18
x = -6
2006-11-19 17:30:39 · answer #6 · answered by Anonymous · 1⤊ 0⤋
7 + 3x = 6x + 25 --- Subtract "6x" from both sides...
(-3x) + 7 = 25 --- Subtract "7" from both sides...
-3x = 18 --- Divide both sides by "-3"...
x = -6
2006-11-19 17:23:36 · answer #7 · answered by Anonymous · 1⤊ 0⤋
x= -6
2006-11-19 17:32:15 · answer #8 · answered by Anonymous · 1⤊ 0⤋
7+3x=6x+25
-3x= -3x
_____________
7=3x+25
-25=-25
__________
-18=3x
-18/3=3x/3
-6=x or x=-6
2006-11-19 17:34:30 · answer #9 · answered by temptingreeta 1 · 1⤊ 0⤋
Move x to one side, and all the numbers to one side...
so
-3x = 18
x = -6
2006-11-19 17:21:15 · answer #10 · answered by xchipowers 2 · 1⤊ 0⤋