Question

7 / x - 4 = -4 x / x +1

Answer 1

@precal

Answer 2

@wio @Michele_Laino

Answer 3

is your equation this?
\[\frac{ 7 }{ x }-4=-4\frac{ x }{ x+1 }\]

Answer 4

yes

Answer 5

ok! Now do you know what is the least common multiple?

Answer 6

no

Answer 7

your least common multiple is:
\[x*(x+1)\]

Answer 8

so yopu have to multiply both sides of your equation by x(x+1)

Answer 9

for example, left side is:
\[x(x+1)*\left( \frac{ 7 }{ x }-4 \right)=x(x+1)*\frac{ 7 }{ x }+x(x+1)*(-4)=...\]
please continue