Answer:

a)3x-3=10

3x=10+3

x=10+3/3

x=10

b)3x=21

x=21/3

x=7

c)p-3=7

p=7-3

p=4

d)2l+3=7

2L=7-3

L=4/2

L=2

e)x/2+5=11

x/2=11-5

x=6*2

x=12

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Step-by-step explanation:

1 3x-3=10

3x=10+3

3x= 13

2 3x=21

x= 21÷3

x=7

3. p-3=7

p= 7+3

p=10