Question

- 17 a + 1-5 a = 61valor do a
$17z + 1 - 5 z = 61$
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Answer 1

- 17a + 1 - 5a = 61

- 17a - 5a + 1 = 61

- 22a = 61-1

- 22a = 60

a = 60/-22 (÷2)

a = -30/11

17z + 1 - 5z = 61

17z - 5z = 61 - 1

12z = 60

z = 60/12

z = 5