-6
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y = (x+1)/(x-7)
Multiply both sides by (x-7):
y(x-7) = x+1
xy-7y = x+1
Isolate x...
Subtract x from both sides:
xy-x-7y = 1
Add 7y to both sides:
xy-x = 7y+1
Factor out x:
x(y-1) = 7y+1
Divide both sides by (y-1):
x = (7y+1)/(y-1), y<>1 (To avoid division by zero)
1.66666666666666666667 because 3 plus 1 plus 1 equals 5 and 5 divided by 3 equals 1.6666666666666666666.7.
-1
9 divided by 9 equals 1, and 3 times 12 equals 36. 1 plus 36 equals 37.
Your equations are not worded properly.
2 plus 1-x divided by.