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X+2=3x+8 geometry solve for x
asked
Dec 18, 2017
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4
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X+2=3x+8
geometry
solve for x
Mathematics
high-school
Cdrev
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Cdrev
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2
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7
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x + 2 = 3x + 8
(Subtract 8 over)
x - 6 = 3x
(Commutative property, x on the left is easier to understand usually)
3x = x - 6
(Subtract x over)
2x = 6
(Divide both sides by 2)
x = 3
CCBlackburn
answered
Dec 19, 2017
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CCBlackburn
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3
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x+2=3x+8
Subtract 3x from both sides
x+2−
3x
=
3x
+8
−
3x
−
2x
+2
=
8
Subtract 2 from both sides
-2x+2-2=8-2
-2x=6
Then divide both sides by -2
You get x= -3
Gorn
answered
Dec 23, 2017
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Gorn
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