3 years ago

If a+b+b =24 and b-a =4 what is a?

Mathematics

2 answers:

Scorpion4ik [409]3 years ago

7 0

A = 16/3, b = 28/3
This is only a substitution

Lyrx [107]3 years ago

3 0

Answer:

a = 5 1/3

Step-by-step explanation:

a+b+b = 24

a + 2b = 24

b-a =4

a = b - 4

b - 4 + 2b = 24

3b = 24 + 4

b =28/3

substitute this in a = b - 4

a = 28/3 - 4

a = 28/3 - 12/3

a = 16/3

a = 5 1/3

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If a+b+b =24 and b-a =4 what is a?​

If a+b+b =24 and b-a =4 what is a?