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va rog!
2 supra 5 ( x minus 3) plus 4 x plus 6 supra 15 egal 2x plus 7 supra 10 minus 1 supra 30​


Răspuns :

Explicație pas cu pas:

2/5•(x-3) + 4x + 6/15 = 2x + 7/10 - 1/30

2x/5 - 3/5 + 4x + 2/5 = 2x + 2/3

Numitor comun : 15

6x - 9 + 60x + 6 = 30x + 10

66x - 3 = 30x + 10

36x = 13

x=13/36

2/5×(x-3) + 4x + 6/15 = 2x + 7/10 - 1/30

³⁾2x/5 - ³⁾3/5 + ¹⁵⁾4x + ³⁾2/5 = ¹⁵⁾2x + ⁵⁾2/3

6x - 9 + 60x + 6 = 30x + 10

6x + 60x - 30x = 10 + 9 - 6

36x = 13

x = 13/36