1/(x+2) = 3/x
x=3(x+2)
x=3x+6
-6=2x
x=-3
??? explain better.
3n + 4
ten more than five times a number
2
minus 9
-3
-3
6
6
1/(x+2)=3(1/x) x=3x+6 -2x=6 x=-3 Does this make sense? 1/(-3+2)=-1=3(1/-3) Yup. It works.
Four more than three times a number
The sum of three times a number and its square is 10 more than 6 times a number?
A reciprocal is an "upside-down number"!More technically, the reciprocal of a number is 1 divided by the number.Examples:the reciprocal of 2 is one-half (0.5)the reciprocal of 10 is one-tenth (0.1)the reciprocal of 1 = 1
128
Five (5) more than (+) three times a number (3x) is (=) five times the number (5x) less (-) three (3) 5 + 3x = 5x - 3 x = 4
7
Thirty decreased by three times a number is six less than three times the number. Find the number.