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gracye
20.09.2020 •
Mathematics
Any help for this math question 5+4(x-7)=2x9 AND -5x<25
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Ответ:
9(x-7)=18
9x-64=18
9x=18+63
9x=81
X=9
Ответ:
An inverse operation is two operations that undo each other e.g. addition and subtraction or multiplication and division. You can perform the same inverse operation on each side of an equivalent equation without changing the equality. This gives us a couple of properties that hold true for all equations.