December 2019 1 42 Report
Resolva as equações a seguir, sendo U = Z

façam os cálculos prfv!!

a)2x + 3= 9
b)-3x + 5= x + 1
c)6x = -x + 16
d)9x - 9 + 3x= 15
e)5x + 4= 3x - x + 3
f)7x + 8 - 3x= 20 - 4x + 1

alguém pode me ajudar?
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