Set up the equation and solve:
15x - 8 - 3x = 16 (next add 8 to each side)
15x - 3x - 16 + 8 (next simplify)
12x = 24 (next divide both side by 12 to solve for x)
x = 2
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If you mean: 3x+2y = 16 then it is y = -1.5x+8
3x² - 22x - 16 = (3x + 2)(x - 8)
2/3 divided by x equals 7/8 is the same as 2/3*1/X = 7/8 or 2/3X = 7/8, to solve for X, cross multiply the fractions: 3X*7 = 2*8 21X = 16 X = 16/21
If: 3x+8 = 14 Then: 3x = 14-8 So: 3x = 6 Divide both sides by 3: x = 2
3x + 2y = 8 This is an equation. It could be the equation of a line.