Resolva.... a)3(x+4)+8(x4 1)=10 b)6x+4(x+2)=7 c)6y+3(4+7)=8 d)2y+7(y+4)=10.... Pergunta de ideia deJenniEvellyn

December 2019 1 47 Report

Resolva....
a)3(x+4)+8(x4 1)=10
b)6x+4(x+2)=7
c)6y+3(4+7)=8
d)2y+7(y+4)=10

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rebecamnda A)3x+12+8x+328=10
3x+8x=10-12-328
11x =330
x=330/11
X=30

B)6x+4x+8=7
6x+4x=7-8
10x=-1
X=-1/10

C)6y+12+21=8
6y=8-12-21
6y=-25
Y=-25/6

D)2y+7y+28=10
2y+7y=10-28
9y=-18
y=-18/9
Y=-2

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