✔ 最佳答案
My answer is
X = 1 - 4x/(6-3x)
or simplify it further: X = (6 - 7x)/(6 - 3x)
here's how I did it:
3x/2 - 2x/(X-1) = 3
get the LCD of the left side of the equation which is 2(X-1)
simplify the left side further and we get [3x(X -1) - 2x(2)]/[2(X-1)]
the equation will be [3x(X -1) - 2x(2)]/[2(X-1)] = 3
to cancel out the denomenator on the left side of the equation,
we multiply both sides of the equation by [2(X-1)]
and the result will be [3x(X -1) - 2x(2)] = 3[2(X-1)]
by simplifying further the result will be 3x(X -1) - 4x = 6(X-1)
let's transfer the 3x(X -1) to the right side of the equation
by subtracting both sides with 3x(X -1)
the result will be -4x = 6(X-1) - 3x(X -1)
on the right side of the equation we can factor out (X -1)
the result will be -4x = (6 - 3x)(X -1)
divide both sides of the equation by (6 - 3x) to even further isolate
the X... ^_^ the result will be -4x/(6 - 3x) = X - 1
add 1 to both sides of the equation to cancel out the minus 1
on the right side *********(^_^)****************
the answer will be -4x/(6 - 3x) + 1 = X
or simply X = 1 - 4x/(6 - 3x)
try it yourself!