Question

-5 (1/5 + 2/9z) - 1.5 (2 - 20/27z) = 3 1/12

Answer 1

Надеюсь я вам помогла

Answer 2

Let's simplify the given equation step by step:

-5 (1/5 + 2/9z) - 1.5 (2 - 20/27z) = 3 1/12

-1 - (10/9z) + 3 - (10/27z) = 3 1/12 [distributing -5 and -1.5]

-8/9z + 2 = 39/12 [combining like terms and simplifying fractions]

-8/9z = 39/12 - 2 = 15/4 [subtracting 2 from both sides]

z = - (15/4) / (8/9) = - (15/4) * (9/8) = - 35/8

Therefore, the solution to the given equation is z = -35/8.