Math, asked by kittupranav27, 10 months ago

21 − 3(a − 7) = a + 20

Answers

Answered by pranavbairy2

1

Answer:

21 - 3a + 21 = a + 20

42 - 20 = 4a

a = 5.5

Answered by gamerstupid4

1

Answer:

Step-by-step explanation:

21-3a+21=a+20

42-20=3a+a

22=4a

22/4=a

a= 11/2 or 5.5

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