3 years ago

If 12a - 5 = 4a + 11 ,then a= what?

Mathematics

2 answers:

FinnZ [79.3K]3 years ago

7 0

Answer:

a=2

Step-by-step explanation:

12a - 5 = 4a + 11

Subtract 4a from each side

12a-4a - 5 = 4a-4a + 11

8a -5 = 11

Add 5 to each side

8a -5+5 = 11+5

8a = 16

8a/8 = 16/8

a =2

dmitriy555 [2]3 years ago

3 0

Answer:

a = 2

Step-by-step explanation:

12a - 5 = 4a + 11

correct the like terms

12a-4a = 11+5

8a = 16

divide by 8

8a/8 = 16/8

a = 2

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