Question 330
<font face = "courier new" size = 2>how does -2x+4(-2x-2)=-1+4(x-1) come out to equal -13/2? if you could please
send a detailed step by step way that this question is solved. thank you 
<pre><font face = "courier new" size = 2 color = "blue"><b>
That answer -13/2 is incorrect if you copied it correctly.
The correct answer to the equation above, is -3/14, and it is 
correct because it is checked below:
                     -2x + 4(-2x - 2) = -1 + 4(x - 1)
                         -2x - 8x - 8 = -1 + 4x - 4
                             -10x - 8 = -5 + 4x
                            -10x - 4x = -5 + 8
                                 -14x = 3
                                    x = -3/14 
<font color = "magenta"><b>
Check:               -2x + 4(-2x - 2) = -1 + 4(x - 1)
         -2(-3/14) + 4[-2(-3/14) - 2) = -1 + 4(-3/13 - 1)
                    3/7  + 4[3/7 - 2] = -1 + 4(-3/14 - 14/14)
                 3/7  + 4(3/7 - 14/7) = -1 + 4(-3/14 - 14/14)
                       3/7 + 4(-11/7) = -1 + 4(-17/14)
                           3/7 - 44/7 = -1 - 34/7
                                -41/7 = -7/7 - 34/7
                                -41/7 = -41/7                                
<font color = "red">Edwin</b>