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AndreeaAndi12
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Exercitiul 4.Multumesc

Exercitiul 4Multumesc class=

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Pinzariudany
1/10*(4x-1)/2=21/20; 4x-1/20=21/20; 4x-1=(20*21)/20; 4x-1=21; 4x=21+1; x=22/4
[tex]\frac{1}{10}(2x-\frac{1}{2})=\frac{21}{20}[/tex]
[tex]2x-\frac{1}{2}=\frac{21*10}{20}[/tex]
[tex]2x=\frac{21}{2}+\frac{1}{2}[/tex]
[tex]2x=\frac{22}{2} [/tex]
[tex]x=5,5[/tex]

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