Answered

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1) 6х - 4 = 5х - 11 ; ??


2) 0,3( х -2) = 0,6 + 0,2(х+4) ; ??

Sagot :

Allrounder30

Answer:

  1. x = -7
  2. x = 20

Step-by-step explanation:

1) 6x - 4 = 5x - 11 ↓

[tex] \bf\longrightarrow \: 6x - 4 = 5x - 11 \\ \bf\longrightarrow \: 6x - 5x = - 11 + 4 \\ \bf\longrightarrow \: x = - 7[/tex]

2) 0.3(x-2) = 0.6 + 0.2(x+4) ↓

[tex] \bf\longrightarrow \: 0.3(x - 2) = 0.6 + 0.2(x + 4) \\ \bf\longrightarrow \: 0.3x - 0.6 = 0.2x + 1.4 \\ \bf\longrightarrow \: 0.3x - 0.2x = 1.4 + 0.6 \\ \bf\longrightarrow \: 0.1x = 2 \\ \bf\longrightarrow \: x = \frac{ \cancel2}{ \cancel0.1} \\ \bf \longrightarrow \: x = 20[/tex]

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