F1 MATHS(急) (10分) 聽日TEST

1.22-(u-9)=6u-(13-4u)
22+13+9=6u-4u+u
3u=44
u=44/3
2.7=9q/4-(3+q)
q=9q/4-10
4q=9q-40
-5q=-40
q=8

3.3(6+w)=12+8(w+2)
3w-8w=12+16-18
-5w=10
w=-2

1. 22-(u-9)=6u-(13-4u)
22-u+9=6u-13+4u
31-u=10u-13
10u+u=31+13
11u=44
u=4

2. 7=9q/4-(3+q)
7=9q/4-3-q
7+3=9q/4-q
10=9q/4-4q/4
10=5q/4
40=5q
q=8

3. 1/8(6+w)=1/2 - 1/3 (w+2)
6/8+w/8=1/2-w/3-2/3
w/8+w/3=1/2-2/3-6/8
3w/24+8w/24=12/24-16/24-18/24
11w/24=-22/24
11w=-22
w=-2

1. 22-(u-9)=6u-(13-4u)
22-u+9 = 6u-13+4u
-u-6u-4u = -13-22-9
-11u = -44
u = 4
2.
係唔係 9q/4= 4分之9q ??
7=9q/4-(3+q)
7+ (3+q) = 9q/4
10 + q = 9q/4
40 + 4q = 9q
40 = 5q
q = 8

1.
22 - u + 9 = 6u - 13 + 4u
22 + 9 + 13 = 6u + 4u + u
44 = 11u
u = 4

2.
7 (4 - (3 + q)) = 9q
7 (4 - 3 - q) = 9q
7 (1 - q) = 9q
7 - 7q = 9q
7 = 9q + 7q
q = 7 / 15

3.
(6 + w) = 4 - 8/3 (w + 2) --- 全式乘8
3 ( 6 + w ) = 12 - 8 (w + 2) --- 全式乘3
18 + 3w = 12 - 8w - 16
3w + 8w = 12 - 16 - 18
11w = - 22
w = -2