responda:
a)7x-4+8x=14x+4
b)3(x+7)=114
Soluções para a tarefa
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a) +7x+8x-14x = +4+4
+1x = 8
x= 8/1
b) +3(x+7)= 114
+3x+21 = +114
+3x = -21 + 114
+3x = 93
x= 93 : 3
x= 31
+1x = 8
x= 8/1
b) +3(x+7)= 114
+3x+21 = +114
+3x = -21 + 114
+3x = 93
x= 93 : 3
x= 31
jcoimbra415:
obg
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