well x 5 2x x - 3 doesnt make any sense. please re-ask question so someone can understand exactly what answer you need.
if you want you can message me on my message board and ill be glad to answer any algebra or math problem you have.
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If you mean: x-3 = 2x-8 then the value of x works out as 5
If the equation is (2x)^3-3x, then the answer is -985. However, if the equation if 2(x)^3-3x, then the answer is -235.
-3(x-5)=2x -3x+15=2x 15=5x x=3
In Algebraic Expressions in Algebra,x is a variable,meaning, it has no value. But if you do algebra,like 2x-5, you subtract 2 from 5. The answer is 3,right? but 2 is written before 5,so you write -3. You then can copy the x and voila! That is the answer. BTW the answer is -3x.
2x + 1 = -5 so 2x = -6 so that x = -3 Then 3x - 4 = 3*(-3) -4 = -9 - 4 = -13