2007-03-10 05:09:12 · 8 answers · asked by In Need!! 1 in Science & Mathematics ➔ Mathematics
first subtract 5 from both sides.
1/2x +5 -5 = 12 - 5
1/2x = 7
now multiply both sides by 2
1/2x * 2 = 7 * 2
(1/2 times 2 becomes 1)
and now....
x=14
try plugging it in. half of 14 is seven, and seven plus 5 equals 12!
2007-03-10 05:16:33 · answer #1 · answered by MrMonkIsMyIdol 2 · 0⤊ 0⤋
1/2x + 5 = 12
2(1/2x) + 2(5) = 2(12)
x + 10 + 24
x + 10 - 10 = 24 - 10
x = 14
Insert the x value into the equation
- - - - - - - -
Check
1/2(14) + 5 = 12
14/2 + 5 = 12
7 + 5 = 12
12 = 12
- - - - - - - - - -s-
2007-03-10 16:55:31 · answer #2 · answered by SAMUEL D 7 · 0⤊ 0⤋
Multiply by 2.
x + 10 = 24 Subtract 10
x = 14
2007-03-10 13:12:55 · answer #3 · answered by ecolink 7 · 0⤊ 0⤋
1/2x=7
x=14
2007-03-10 13:14:04 · answer #4 · answered by miinii 3 · 0⤊ 0⤋
1/2(x) + 5 = 12
1/2(x) = 7
x=14
2007-03-10 13:13:11 · answer #5 · answered by Teacher05 1 · 0⤊ 0⤋
take 5 from both sides to get
1/2 x =7
multiply each side by 2 to get x on its own
x = 14
2007-03-10 13:12:49 · answer #6 · answered by rg 3 · 0⤊ 0⤋
it is linear equation in one unknown
if you need x multiply both sides by 2
x + 10 = 24
x = 14
2007-03-10 13:12:28 · answer #7 · answered by Anonymous · 0⤊ 0⤋
x=14
Please give me best answer thanks!
2007-03-10 13:33:51 · answer #8 · answered by Anonymous · 0⤊ 0⤋