Question

Determine o valor de a:
a) A×27=27
b)45×A=0
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Answer 1

a) A × 27 = 27

27A = 27

A = 27 ÷ 27

A = 1

b) 45 × A = 0

A45 = 0

A = 0 ÷ 45

A = 0