Question

Pls Work out fast
First answer as brinalist​

Answer 1

Answer:

c

d

a

b

Step-by-step explanation:

mark me brainliest first

Answer 2

Answer:

1) x+ x+1 = 21

2x= 21-1

2x=20

x= 20/2

x= 10

2)px+q-y=0

q= -px+y

q= y-px

3)A is x years old

B is (x-2)-2 years old

B is x-4 years old.

4)1/a=1/4

a=4

5)2/x-1 =1

2=x-1

2-1=x

x= 1

6)1/3x +8=29

1/3x = 29-8=21

x= 21÷1/3

x= 21× 3

x= 63

7) a) y+4=10

8) 4/x + 2=3

4/x= 3-2=1

4=x

x=4