Math, asked by rohitsamanta33, 7 months ago

21 - 3(a - 7) = a + 20

Answers

Answered by sravyakrishna73

3

Answer:

11/2

Step-by-step explanation:

21 - 3(a - 7) = a + 20

21 - 3a + 21 = a + 20

42 - 20 = a + 3a

4a = 22

a = 22/4

a = 11/2

Answered by pranavg963

0

Answer:

a = 5.5

Step-by-step explanation:

21 - 3(a - 7) = a + 20

21 - 3a + 21 = a + 20

42 - 3a = a + 20

42 - 20 = a + 4a

22 = 4a

22/4 = a

a = 5.5

PLEASE MARK ME AS BRAINLIAST !!

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