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Popcik778
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c)5×(4X+7)-32=63
b)5×(4X+7)-32=63
b)7÷(3X-5)+23=144
c)15×(18-X)=180
d)63÷(X-2)=7
e)9×(2X+1)=15×3
f)14X+28X=588
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Răspuns :

Boredaf

a)5×(4x+7)-32=63

5×(4x+7)=32+63

5×(4x+7)=95

4x+7=95÷5

4x+7=19

4x=19-7

4x=12

x=12/4

x=3

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