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Rodneygc
07-21-2006, 08:54 PM
I have a math problem that i can't figure out I know the answer because it is in the back of the book however I can't seem to figure out the answer. If possible can someone please show me the steps. Thank You.
The problem is: 3x/2-5=4x+5/8

tkhunny
07-21-2006, 10:34 PM
I have a math problem that i can't figure out I know the answer because it is in the back of the book however I can't seem to figure out the answer. If possible can someone please show me the steps. Thank You.
The problem is: 3x/2-5=4x+5/8Get rid of fractions, unless you like them. Multiply everything by 8

8*(3x/2)-8*5=8*(4x)+8*(5/8)
12x - 40 = 32x + 5

1) Why did I pick "8"?
2) Can you take it from there?

Denis
07-21-2006, 11:26 PM
IF answer per book = -5/12, then you need BRACKETS in your equation...

stapel
07-22-2006, 12:37 AM
The problem is: 3x/2-5=4x+5/8
What you have posted means the following:

. . . . .\L \frac{3x}{2}\,-\,5\,=\,4x\,+\,\frac{5}{8}

Is this what you meant? Or did you mean something more along the lines of the following?

. . . . .\L \frac{3x}{2}\,-\,5\,=\,\frac{4x\,+\,5}{8}

Or something else?

Were the instructions to "solve the equation"? What have you tried?

Thank you.

Eliz.

Rodneygc
07-22-2006, 06:18 AM
Yes the Problem is

3x-5=4x+5
2 8[/tex]

jonboy
07-22-2006, 11:53 AM
Hello Rodney!


Solve: \L \frac{3x}{2} - 5=4x + \frac{5}{8}

Mulitply by 2: \; {3x} - 10 = 8x + \frac{5}{4}

Multiply by 4: \; 12x-40=32x+5

Subtracting 12x: \; - 40 = 20x + 5

Subtract 5: \; -45=20x

Divide by 20: \; -2\frac{1}{4}=x

Check: \; \frac{3(-2\frac{1}{4})}{2} - 5=4(-2\frac{1}{4}) + \frac{5}{8}

Subsitution: \; -8\frac{3}{8}= -8\frac{3}{8}

If that is not what you mean then at least you will have something to help you.