if the sum of twice a number and -14 is multiplied by 2, the result is 12 greater than the opposite of the number. What is the number?
2007-01-30 16:33:55 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
sum means add
twice a number. let's call the number n. twice n is 2*n = 2n
-14 is what you add to n
then multiply the sum by 2
so 2 * (2n - 14)
the result means this is where the = goes
greater means add that number to the end. so + 12 goes at the end
opposite means -. for instance opposite of 5 = -5. so opposite of n is -n
12 greater -> -n + 12
the whole thing
2 * (2n - 14) = -n + 12
get it?
2007-01-30 16:40:00 · answer #1 · answered by lizzy208_ayla 2 · 0⤊ 0⤋
If i got u right, the missing number will be: 40/3
From 2(2X-14)= 12 + X
2007-01-31 00:42:38 · answer #2 · answered by raqandre 3 · 0⤊ 0⤋
2(2N - 14) = -N + 12
you do the rest
2007-01-31 00:40:03 · answer #3 · answered by banjuja58 4 · 0⤊ 0⤋