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How to do the problem 2.3(X-4)=27.6 on page 27 of the first volume of the fifth grade math exercise book?
2.3(X-4)=27.6

Solution: 2.3X-2.3 times 4=27.6.

2.3 times -9.2=27.6

2.3 times =27.6+9.2

2.3 times =36.8

X=36.8 divided by 2.3

X= 16

Simple enough not to be ... anxious.