104=1/2[(360-x)-x]
2007-08-18 05:35:36 · 4 answers · asked by ALLIE 2 in Science & Mathematics ➔ Mathematics
208 = 360 - 2x
2x = 152
x = 76
2007-08-21 19:25:46 · answer #1 · answered by Como 7 · 0⤊ 0⤋
First, multiply both sides by 2
208=(360-x)-x
208=360-2x
360-2x=208
add 2x to both sides
360-2x+2x=208+2x
360=208+2x
subtract 208 from both sides
360-208=208-208+2x
152=2x
2x=152
x=76
check: 104=1/2[(360-76)-76]
104=1/2[284-76]
104=1/2[208]=104
2007-08-18 13:12:26 · answer #2 · answered by cidyah 7 · 0⤊ 0⤋
104=1/2[(360-x)-x]
104=1/2(360-2x) You are going to end up subtracting x twice anyway. Now divide each side by 1/2:
208=360-2x Now subtract 360 from both sides to get the variables on one side and the constants on the other:
-152=-2x Now divide each side by -2
76=x
2007-08-18 13:00:37 · answer #3 · answered by Game_Over 2 · 0⤊ 0⤋
76
2007-08-18 12:44:43 · answer #4 · answered by sv1973 2 · 0⤊ 0⤋