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Sistema de dos ecuaciones que contienen parentesis.

Authored by Yolibeth Velasquez

Mathematics

8th Grade

Used 1+ times

Sistema de dos ecuaciones que contienen parentesis.
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7 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 {3x2y =105x+2(y+4)=30}\left\{\frac{3x-2y\ =10}{5x+2\left(y+4\right)=30}\right\}  

x=4   y  y=1

x=8 y y=2

8=x      y=4

ninguna es correcta

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 {5x+2y=15(x+2)+3y=46}\left\{\frac{-5x+2y=-1}{5\left(x+2\right)+3y=46}\right\}  

(4,1)

(3,7)

(2,7)

todas son correctas

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 {7x3y=54x+3(y1)=14}\left\{\frac{7x-3y=5}{4x+3\left(y-1\text{}\right)=14}\right\}  

(6,8)

(3,4)

(2,3)

La primera es correcta

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 {2x3y=42x+3(y2)=10}\left\{\frac{2x-3y=4}{2x+3\left(y-2\right)=10}\right\}  

(4,5)

(3,2)

(5,2)

ninguna es corecta

5.

MULTIPLE SELECT QUESTION

1 min • 1 pt

para eliminar los paréntesis en una ecuación se utiliza la propiedad...

Asociativa

Distributiva

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 {y=2x+43(x+y)2=9}\left\{\frac{y=2x+4}{3\left(x+y\right)-2=9}\right\}  

(1,4)

(2,5)

(7,3)

(1,6)

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 {4x+3(y1)=147x3y=5}\left\{\frac{4x+3\left(y-1\right)=14}{7x-3y=5}\right\}  

(1,6)

(2,3)

(3,2)

(5,4)

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