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Elina [12.6K]
1 year ago
14

Find the number a for which x=5 is a solution of the given equation.

Mathematics
1 answer:
vfiekz [6]1 year ago
3 0

Step-by-step explanation:

x + 8a = 25 + ax - 7a

x = 5

5 + 8a = 25 + 5a - 7a

5 + 8a = 25 - 2a

5 + 10a = 25

10a = 20

a = 2

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