-3x + 5 + 6 = -15
Multiply by -1 (swap all signs): 3x - 5 - 6 = 15
Combine like terms on left side: 3x - 11 = 15
Add 11 to both sides: 3x = 26
Divide both sides by 3: x = 26/3 or 8.66...
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If: 3x = 15 Then: x = 5
3x+5 = 2x+13 3x-2x = 13-5 x = 8
if 3x+5=x+19 then x=7
If: 3x+5 = 4x+1 Then: x = 4
5X + 6 = 2X + 15 -2X -2X 3X + 6 = 15 -6 -6 3X = 15 ---- ----- 3 3 x = 5 im so smart.