Copia y completa las igualdades.
a)1/2+ • /5=7/10
b)3/8+ • /4=5/8
c)4/ • -2/5=6/35
d) • /6-1/3=1/6
AYUDITA PLZ
Respuestas
Respuesta dada por:
10
RESOLUCIÓN :
° = x
a)
![\frac{1}{2}+\frac{x}{5}=\frac{7}{10} \frac{1}{2}+\frac{x}{5}=\frac{7}{10}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%2B%5Cfrac%7Bx%7D%7B5%7D%3D%5Cfrac%7B7%7D%7B10%7D)
![\frac{1}{2}+\frac{x}{5}-\frac{1}{2}=\frac{7}{10}-\frac{1}{2} \frac{1}{2}+\frac{x}{5}-\frac{1}{2}=\frac{7}{10}-\frac{1}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%2B%5Cfrac%7Bx%7D%7B5%7D-%5Cfrac%7B1%7D%7B2%7D%3D%5Cfrac%7B7%7D%7B10%7D-%5Cfrac%7B1%7D%7B2%7D)
![\frac{x}{5}=\frac{1}{5} \frac{x}{5}=\frac{1}{5}](https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B5%7D%3D%5Cfrac%7B1%7D%7B5%7D)
![\boxed{x =1}} \boxed{x =1}}](https://tex.z-dn.net/?f=%5Cboxed%7Bx+%3D1%7D%7D)
b)
![\frac{3}{8}+\frac{x}{4}=\frac{5}{8} \frac{3}{8}+\frac{x}{4}=\frac{5}{8}](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B8%7D%2B%5Cfrac%7Bx%7D%7B4%7D%3D%5Cfrac%7B5%7D%7B8%7D)
![\frac{3}{8}+\frac{x}{4}-\frac{3}{8}=\frac{5}{8}-\frac{3}{8} \frac{3}{8}+\frac{x}{4}-\frac{3}{8}=\frac{5}{8}-\frac{3}{8}](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B8%7D%2B%5Cfrac%7Bx%7D%7B4%7D-%5Cfrac%7B3%7D%7B8%7D%3D%5Cfrac%7B5%7D%7B8%7D-%5Cfrac%7B3%7D%7B8%7D)
![\frac{x}{4}=\frac{1}{4} \frac{x}{4}=\frac{1}{4}](https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B4%7D%3D%5Cfrac%7B1%7D%7B4%7D)
![\boxed{x=1}} \boxed{x=1}}](https://tex.z-dn.net/?f=%5Cboxed%7Bx%3D1%7D%7D)
c)
![\frac{4}{x}-\frac{2}{5}=\frac{6}{35} \frac{4}{x}-\frac{2}{5}=\frac{6}{35}](https://tex.z-dn.net/?f=%5Cfrac%7B4%7D%7Bx%7D-%5Cfrac%7B2%7D%7B5%7D%3D%5Cfrac%7B6%7D%7B35%7D)
![\frac{4}{x}\cdot \:35x-\frac{2}{5}\cdot \:35x=\frac{6}{35}\cdot \:35x \frac{4}{x}\cdot \:35x-\frac{2}{5}\cdot \:35x=\frac{6}{35}\cdot \:35x](https://tex.z-dn.net/?f=%5Cfrac%7B4%7D%7Bx%7D%5Ccdot+%5C%3A35x-%5Cfrac%7B2%7D%7B5%7D%5Ccdot+%5C%3A35x%3D%5Cfrac%7B6%7D%7B35%7D%5Ccdot+%5C%3A35x)
![140-14x=6x 140-14x=6x](https://tex.z-dn.net/?f=140-14x%3D6x)
![140 = 6x +14x
140 = 20 x
140 /20 = x
\boxed{x = 7}} 140 = 6x +14x
140 = 20 x
140 /20 = x
\boxed{x = 7}}](https://tex.z-dn.net/?f=140+%3D+6x+%2B14x%0A%0A140+%3D+20+x%0A%0A140+%2F20+%3D+x%0A%0A%5Cboxed%7Bx+%3D+7%7D%7D)
d)
![\frac{x}{6}-\frac{1}{3}=\frac{1}{6} \frac{x}{6}-\frac{1}{3}=\frac{1}{6}](https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B6%7D-%5Cfrac%7B1%7D%7B3%7D%3D%5Cfrac%7B1%7D%7B6%7D)
![\frac{x}{6}-\frac{1}{3}+\frac{1}{3}=\frac{1}{6}+\frac{1}{3} \frac{x}{6}-\frac{1}{3}+\frac{1}{3}=\frac{1}{6}+\frac{1}{3}](https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B6%7D-%5Cfrac%7B1%7D%7B3%7D%2B%5Cfrac%7B1%7D%7B3%7D%3D%5Cfrac%7B1%7D%7B6%7D%2B%5Cfrac%7B1%7D%7B3%7D)
![\frac{x}{6}=\frac{1}{2} \frac{x}{6}=\frac{1}{2}](https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B6%7D%3D%5Cfrac%7B1%7D%7B2%7D)
![\boxed{x = 3}} \boxed{x = 3}}](https://tex.z-dn.net/?f=%5Cboxed%7Bx+%3D+3%7D%7D)
° = x
a)
b)
c)
d)
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