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July 24, 2014

Posted by **cheyanne** on Tuesday, March 6, 2012 at 12:19am.

1) (/3x+7) = x-1

2) (3/2x)-3=9

Note: (/3x+7) is the square root of 3x plus 7 and (3/2x)-3=9 is 3 times the square root of 2x - 3 equals 9.

- math -
**drwls**, Tuesday, March 6, 2012 at 6:34amThank you for clarifying your unconventional notation.

1) sqrt(3x +7) = x-1

3x + 7 = x^2 -2x + 1

x^2 -5x -6 = 0

(x-6)(x+1) = 0

x = 6 or -1

2. 3*sqrt(2x-3) = 9

sqrt(2x -3) = 3

2x -3 = 9

x = 6

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