Помогите найти х: 1) 5x = 2x + 6
2) ((x : 2 − 3) : 2 − 1) : 2 − 4 = 3 Дам 40 балов
2) ((x : 2 − 3) : 2 − 1) : 2 − 4 = 3 Дам 40 балов
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1)5x=2x+6
5x - 2x = 6
3x= 6
x= 6:3
x= 2
2) ((x:2-3):2-1):2-4=3
((x:2-3):2-1):2=3+4
((x:2-3):2-1):2 =7
(x : 2-3):2-1=7*2
(x : 2-3):2-1=14
(x:2-3):2=14+1
(x:2-3):2=15
x:2-3=15*2
x:2-3=30
x:2=30+3
x:2=33
x=33*2
x=66