Помогите : В)18+(16-x)*8=90

Question

Помогите :
В)18+(16-x)*8=90

Answer 1

18 + (16 – х) • 8 = 90
18 + 128 – 8х = 90
146 – 8х = 90
– 8х = 90 – 146
– 8х = – 56
х = 7

Answer 2

В)18+(16-x)*8=90
18+128-8x=90
18+128-90=8x
56=8x
x=7

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