Do you mean "what is the value of x when 3x - 2x = 15?" in that case, the value of x is 15
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If you mean: x+y = 30 and the value of y is 15 then the value of x is also 15
If you mean the value of 15-2x when x is 2 then it is: 15-4 = 11
If you mean: x^2+15-3x then its value is 19 when x equals 4
Given LBRW and = 15 and = 3x - 9, what is the value of x? 8
x is 45.