Solve for x in the proportion x over the quantity x plus 12 equals 1 over the quantity x minus 1.

x ≈ −6.02 and x ≈ 5.02

x ≈ −3.46 and x ≈ 3.46

x ≈ −3.14 and x ≈ 4.14

x ≈ −2.61 and x ≈ 4.61

Question

Solve for x in the proportion x over the quantity x plus 12 equals 1 over the quantity x minus 1.

x ≈ −6.02 and x ≈ 5.02

x ≈ −3.46 and x ≈ 3.46

x ≈ −3.14 and x ≈ 4.14

x ≈ −2.61 and x ≈ 4.61

anonymous · Answer

x           1
----=-----
x+12    x-1

anonymous · Answer

do you know what to do first?

anonymous · Answer

honestly no..i am so lost with this...:(

anonymous · Answer

You have to use cross products
$$x ^{2}-x=x+12$$