2007-02-06 09:16:47 · 9 answers · asked by Anonymous in Education & Reference ➔ Homework Help
5X + 10 = 2X - 5
3X = -15
X = -5
2007-02-06 09:26:06 · answer #1 · answered by Anonymous · 0⤊ 0⤋
5x+10=2x-5
collect the x's on one side and the whole numbers on the other
(change sides change signs)
5x-2x= -10 -5
3x = -15
divide both sides by 3
x = -5
2007-02-06 09:27:54 · answer #2 · answered by blues_m1 2 · 0⤊ 0⤋
5x+10 = 2x-5 move all the x's to one side.
-5x -5x
10 = -3x -5 then move the 5 to the other side
+5 +5 then you have
15 = -3x then divide both sides by -3
15/-3 =-3x/-3 this equals
-5 = x
then take the original equation and substitue -5 for x to double check.
2007-02-06 09:25:47 · answer #3 · answered by cycopathicrunna 2 · 1⤊ 0⤋
5x+10=2x(-5)
-10 = -10
5x = -15
each side divided by 5
x = -3
2007-02-06 09:43:19 · answer #4 · answered by elizamato 2 · 0⤊ 0⤋
5x + 10 = 2x - 5
3x + 10 = - 5
3x = - 15
x = - 5
2007-02-06 09:20:13 · answer #5 · answered by Firefly 5 · 1⤊ 0⤋
x=-5
2007-02-06 09:27:07 · answer #6 · answered by Brooke H 2 · 0⤊ 0⤋
5x + 10 = 2x - 5
5x-2x = -5 -10
3x= -15
x = -5
2007-02-06 09:32:40 · answer #7 · answered by sim 3 · 0⤊ 0⤋
x = -5 someones probably done it whilst ive been typing this but oh well.
2007-02-06 09:24:24 · answer #8 · answered by FlorenceMay 1 · 0⤊ 0⤋
the answer is 15
2007-02-06 09:23:34 · answer #9 · answered by Anonymous · 0⤊ 1⤋