Question

Solve each equation ​

Answer 1

1. 20c+5=5c+65

20c-5c=65-5

15c=60

c=4

2. 3(a-5)=-6

3a-15=-6

3a= -6+15

3a = 9

a=3

3.6=3+5(d-2)

6=3+5d-10

6-3+10=5d

13=5d

d= 13/5

4. 5t-9=-3t+7

5t+3t=9+7

8t=16

t=2