Respuesta:
1. X = 9 3. X = 40 5. X= 18
2. X = 8 4. X = 0
Explicación paso a paso:
[tex]1.\\\\\\\\\\\\.[/tex][tex]5+\frac{x}{3} +7 = 15\\\frac{x}{3} = 15 - 5 - 7 \\\frac{x}{3} = 15 - 12\\\frac{x}{3} = 3\\x = 3 * 3 \\x= 9[/tex] [tex]2.\\\\\\\\\\.[/tex] [tex]\frac{x+6}{2}=7\\x+6 = 7*2 \\x+6=14\\x=14-6\\x=8[/tex]
[tex]3.\\\\\\\\\\\\\\.[/tex][tex]\frac{3x}{5}-4 =20 \\\frac{3x}{5}=20 + 4\\\frac{3x}{5}=24\\3x = 24*5\\3x= 120\\x= \frac{120}{3}\\x=40[/tex] [tex]4.\\\\\\\\\\.[/tex][tex]12(x+3)=36\\x+3=\frac{36}{12} \\x+3=3\\x=3-3\\x=0[/tex]
[tex]5.\\\\\\\\\\\\\\.[/tex][tex]2(\frac{x}{6}+1) = 8\\(\frac{x}{6}+1) = \frac{8}{2}\\\frac{x}{6}+1 = 4\\\frac{x}{6}=4-1\\\frac{x}{6}=3\\x=3*6\\x=18[/tex]
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Respuesta:
1. X = 9 3. X = 40 5. X= 18
2. X = 8 4. X = 0
Explicación paso a paso:
[tex]1.\\\\\\\\\\\\.[/tex][tex]5+\frac{x}{3} +7 = 15\\\frac{x}{3} = 15 - 5 - 7 \\\frac{x}{3} = 15 - 12\\\frac{x}{3} = 3\\x = 3 * 3 \\x= 9[/tex] [tex]2.\\\\\\\\\\.[/tex] [tex]\frac{x+6}{2}=7\\x+6 = 7*2 \\x+6=14\\x=14-6\\x=8[/tex]
[tex]3.\\\\\\\\\\\\\\.[/tex][tex]\frac{3x}{5}-4 =20 \\\frac{3x}{5}=20 + 4\\\frac{3x}{5}=24\\3x = 24*5\\3x= 120\\x= \frac{120}{3}\\x=40[/tex] [tex]4.\\\\\\\\\\.[/tex][tex]12(x+3)=36\\x+3=\frac{36}{12} \\x+3=3\\x=3-3\\x=0[/tex]
[tex]5.\\\\\\\\\\\\\\.[/tex][tex]2(\frac{x}{6}+1) = 8\\(\frac{x}{6}+1) = \frac{8}{2}\\\frac{x}{6}+1 = 4\\\frac{x}{6}=4-1\\\frac{x}{6}=3\\x=3*6\\x=18[/tex]