a= 2
-2 x a + 3
-1
-2 x 2= -4
-4+ 3= -1
5(4n + 12)
a) 5 + 16n
c) 5 x 16n
b) 20n + 60
b) 20n + 60
a= 2 b= 4
2a + b =
7
4+4= 8
a= 2
5 x a _ a+ 4
9
5 x 2 = 10
10 _ 2 + 4
5 + 4 = 9
a= 2
10 _ a + 13= 18
18
a= 4 -5a x b + (-3 + 2)
b= 5
-101
-3 + 2= -1 -5 x 4 = -20
-20 x 5 = -100
-100 + -1 = -101
a= 5 b= 7
6 x a + 12 - (b-2)
a) 51 b) 9 c) 37
c) 37
30+ 12- 5= 37
a= 12 b= 9 c=3
(ab) + 7c
129
12 x 9 = 108
3 x 7 = 21
108 + 21 = 29
6n + (12 _ 2) - (6 _ 2)
6n + 3
6n + (12 _ 2) - (6 _ 2)
6n + 6 - 3
6n + 3
12n(4 - 2) - 5n + 4
19n + 4
48n - 24n - 5n + 4
24n - 5n + 4
19n + 4
y=6
-24 _ 6 + 30 + 2 x 6 + (-12)
26
-24 _ 6 + 30 + 2 x 6 + (-12)
-4 + 30 + 12 - 12
26
2 (2 + 3) - 3y - 3 +2x
a) 7- 3y+ 2x
b) 12- 6y+ 2x
c) 7xy
a) 7 - 3y + 2x
2(2+ 3) - 3y- 3+ 2x
2x 5- 3y- 3+ 2x
10- 3y- 3 + 2x = 7- 3y+ 2x
x= 3
8x + 92
105
8 x 3 = 24
92 = 9 x 9 = 81
24 +81 = 105
a= 5 b= 2
(12 x a) _ b+ 6 _ 3
32
60 _ 2 + 2
30 + 2 = 32
10(3n + 5n) + 6n + 2
86n + 2
10(3n + 5n) + 6n + 2
30n + 50n + 6n + 2
80n + 6n + 2= 86n + 2
a= 5 b= 10 c= 4
-11c + (a x b) - (-10)
16
-11c + (a x b) - (-10)
-44 + 50 + 10
16
(3x + 5x) - (4) + (2x + y)
a) 10x - 4 + y
b) -4+ 2x +y
c) 11x - 4
a) 10x- 4 + y
(3x + 5x) - 4 + (2x + y)
8x- 4+ 2x+ y
8x- 4+ 2x+ y= 10x - 4 + y
b=4
123+b =
1732
123= 1728
1728+4= 1732
(32n _ 4) x 8 - 2 + 18
64n - 20
(32n _ 4) x 8 - 2 + 18
8n x 8 - 2 +18
64n - 2 + 18 = 64n - 20
20n _ 10 + 4n - 5 x 12n +2
168 - 7
20n _ 10 + 4n - 5 x 12n +2
10n + 4n - 5 x 12n + 2
14n x 12n - 5 + 2 = 168n - 7
n= a # 15n x 3 + (12n + 4) - (5)
57n- 1
45n + (12n + 4) - 5
57n + 4 - 5
57n - 1
a= 12 b= 11 _ = divided by
3+ 11 + (3 x 12) + 6 _ 12
a) 52 b) 122 c) 50.5
c) 50.5
3+ 11+ (3 x 12) + 6 _ 12
3+ 11 + 36 + 0.5
50.5
n= a # a= 10
4(n + 2) x (10 + 4)
4n + 112
4(n + 2) x (10 + 4)
4n + 8 x 14
4n + 112
(10x _ 2x) + (14x - 4x) + 3 - x
14x + 3
(10x _ 2x) + (14x -4x) + 3 - x
5x + 10x + 3 - x
5x + 10x + 3 - x = 14x + 3
12n (3 + 12) - 5n _ 2
31n +72
20n _ 10 + 4n - 5 x 12n +2
36n + 144 - 5n _ 2
31n + 72