Question

3 z +9 z - 5.8=3.8 и x : 6 + 2.8 = 3.7

Answer 1

3 z +9 z - 5.8=3.8
12 z = 9, 6
z = 0.8

x : 6 + 2.8 = 3.7
x : 6 = 0,9
х  = 5.4

Answer 2

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