Question

2. a) 1+a = 8
b)5 - y = 1
c)4 + z = 15
d)16 - c= 11
e)2+d = 14
f)22 - e= 13
-x-
a) 2.a= 8
b) y:5= 4
c) 4.z= 20
d) c:8= 2
e) 2.a= 14
f) e:6= 3 -x-

Answer 1

2. a) 1+a = 8

1 + a = 8

a = 8 - 1

a = 7

b)5 - y = 1

5 - y = 1

5 - 1 = y

4 = y

c)4 + z = 15

4 + z = 15

z = 15 - 4

z = 11

d)16 - c= 11

16 - c = 11

16 - 11 = c

5 = c

e)2+d = 14

2 + d = 14

d = 14 - 2

d = 12

f)22 - e= 13

22 - e = 13

22 - 13 = e

9 = e

-x-

a) 2.a= 8

2 × a = 8

a = 8/2

a = 4

b) y:5= 4

y ÷ 5 = 4

y = 4 × 5

y = 20

c) 4.z= 20

4 × z = 20

z = 20 ÷ 4

z = 5

d) c:8= 2

c ÷ 8 = 2

c = 2 × 8

c = 16

e) 2.a= 14

2 × a = 14

a = 14 ÷ 2

a = 7

f) e:6= 3

e ÷ 6 = 3

e = 3 × 6

e = 18

Espero ter ajudado!! -zCM