Question

i) 7 = 2x - 5
ii) 13 + 2a = 39

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Answer 1

Answer:

1)7=2x-5

7+5=2x

12=2x

12/2=x

6=x

2)13+2a=39

39-13=2a

26=2a

26/2=a

13=a

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Answer 2

1. 7=2x-5

2x=-5-7

2x=-12

x=-12/2

x=-6

2. 13+2a=39

2a=39-13

2a=26

a=26/2

a=13