a. -14
b. -4
c. 4
d. 14
thanks!
2007-10-14 23:22:13 · 7 answers · asked by dandelion 1 in Science & Mathematics ➔ Mathematics
2x+18=-10
2x=-10-18
(2x=-28)/2
x= -14
2007-10-14 23:47:04 · answer #1 · answered by N!tsuj 2 · 0⤊ 0⤋
Let x be the required number.
According to question,
2x + 18 = - 10
or 2x = -18 - 10
or 2x= -28
or x= -28/2
or x= - 14
Therefore x = -14
Ans; The required solution is a. which is x = -14
2007-10-15 07:33:23 · answer #2 · answered by JMdipto 3 · 0⤊ 0⤋
Yes, that will be -14
Let x be the number,
-10 = 18 + 2x
-10 -18 = 2x
-28 = 2x
-14 = x
2007-10-15 06:54:33 · answer #3 · answered by criselda 3 · 0⤊ 0⤋
Let x be the number that you are looking for.
"2 times a number" would mean 2x.
"18 more than 2 times a number" would mean 2x+18.
"is -10" means that 2x+18 = -10
2x = -10 -18
2x = -28
x = -14
So, (a) is the answer.
2007-10-15 06:29:37 · answer #4 · answered by HarpoonDragoon 3 · 1⤊ 0⤋
2x + 18 = - 10
x + 9 = - 5
x = - 14
Answer: a. - 14
2007-10-15 07:17:14 · answer #5 · answered by Jun Agruda 7 · 2⤊ 0⤋
it would be a. -14
2007-10-15 06:27:26 · answer #6 · answered by filipinogenius 2 · 0⤊ 0⤋
2x + 18 = - 10
2x = - 28
x = - 14
OPTION a
2007-10-15 14:36:18 · answer #7 · answered by Como 7 · 0⤊ 0⤋