1/3x+5/9x=7,2 решите пж

Question

1/3x+5/9x=7,2 решите пж

Answer 1

1/3х + 5/9х = 7,2
3/9х + 5/9х = 7,2
8/9х = 7,2
х = 7,2 : 8/9
х = 8,1

Comments

спасибо)

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Ок!

Answer 2

1/3x+5/9x=8/9x
8/9x=72/10
X=72/10:8/9
X=72/10*9/8
X=81/10
X=8,1