1) x + 16 = 7x = 7 - 16
x = - 9
2) x - 9,21 = 4,3
x = 4,3 + 9,21
x = 13,51
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Answers & Comments
1) x + 16 = 7
x = 7 - 16
x = - 9
2) x - 9,21 = 4,3
x = 4,3 + 9,21
x = 13,51