9(x+2.7)=75.6 要清晰的步骤和说明.

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9(x+2.7)=75.6要清晰的步骤和说明.9(x+2.7)=75.6要清晰的步骤和说明.9(x+2.7)=75.6要清晰的步骤和说明.9(x+2.7)=75.6x+2.7=75.6/9x+2.7=

9(x+2.7)=75.6 要清晰的步骤和说明.
9(x+2.7)=75.6 要清晰的步骤和说明.

9(x+2.7)=75.6 要清晰的步骤和说明.
9(x+2.7)=75.6
x+2.7=75.6/9
x+2.7=8.4
x=8.4-2.7
x=5.7