Question

7.
Solve the equation
5/4x-4 - 6/x+1 = -1
Help Please

Answer 1

Multiply through by common denominator:
(4x-4)(x+1)

Answer 2

how do i do that?

Answer 3

Know how to use the equation function. Give me the right representation of your equation, or better still, draw it. thx

Answer 4

so end up with 5x+5/(4x+4)(x+1) - 24x+24/(4x+4)(x+1) = -1/(4x+4)(x+1) ?

Answer 5

Is it this?\[\frac{ 5 }{ 4x-4 } - \frac{ 6 }{ x+1} = -1\]

Answer 6

yes

Answer 7

\[\frac{ 5 }{ 4x-4 } (4x+4)(x+1)- \frac{ 6 }{ x+1}(4x+4)(x+1) = -1(4x+4)(x+1)\]

Answer 8

ok so

Answer 9

what's next

Answer 10

\[\frac{ 5 }{ 4x-4 } (4x-4)(x+1)- \frac{ 6 }{ x+1}(4x-4)(x+1) = -1(4x-4)(x+1)\]

Answer 11

Sorry, previous had wrong sign

Answer 12

So, the identical brackets cancel out to:\[5(x+1)-6(4x-4) = -1(4x^2-4)\]

Answer 13

Can you do the rest?

Answer 14

Let me help you rearrange, so you can solve for the two values of x\[4x^2-19x+21 = 0\]Two factors you need are 12 and 7. Good luck :)