Question

Solve: negative 1 over 2 x + 2 = −x + 7

10

5 over 2

2 over 5

20

Answer 1

Is this the original problem? \[\frac{-1 }{ 2x+2 } = -x+7\]

Answer 2

Multiply both sides by (2x+2) to get rid of the fractions
\[\frac{ -1 }{ 2x+2 }(2x+2)=(-x+7)(2x+2)\]

Answer 3

\[Distribute (-2x^2-2x+7x+14)=-2x^2+5x+14\]
Add one to both sides \[-1+(1)=(-2x^2+5x+14+(1))\]
\[-2x^2+5x+15=0 \] Now factor and solve

Answer 4

its it ten

Answer 5

no, can you factor?

Answer 6

I can help

Answer 7

ok it looks like its 20

Answer 8

My bad it was \[-2x^2+12x+14=-1 \]
\[-2x^2+12x+15=0\]

Answer 9

http://www.wolframalpha.com/input/?i=(-1%2F2x%2B2)%3D-x%2B7&t=crmtb01&f=rc

Answer 10

it was 10

Answer 11

what was the question? the one iw rote up there?

Answer 12

what

Answer 13

what was the original thing casue it look confusing