2x + 3 = 9x
Subtract 2x from each side: 3 = 7x
Divide each side by 7: x = 3/7.
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5x+18 = 2x+9 5x-2x = 9-18 3x = -9 x = -3 and y = 3
(2x + 3)(2x + 3)
x=3
2x + 3 = 92x = 9 - 32x = 6x = 6/2x = 3
If: x+9+5x = 21+2x Then: x = 3