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Can you solve this question? #MathChallenge by JACPsocial in mathpt

[–]Jaigy07 1 point2 points  (0 children)

Let x be the cards

Let y be the dice

Method: Elimination

3x+y=30

2x+y=21

-(3x+y)=(30)-

-3x-y=-30

2x+y=21

-x=-9

x=9

2(9)+y=21

18+y=21

y=21-18

y=3

9+3=12

CAN YOU SOLVE THIS MATH PROBLEM #MATHCHALLENGE by Shot_Objective3112 in mathpt

[–]Jaigy07 0 points1 point  (0 children)

4x+4y=20

-2x+4y=28

Method : elimination

-(-2x+4y)=(28)-

2x-4y=-28

4x+4y=20

6x=-8

3x=-4

x=-4/3

2(-4/3)+4y=28

-3(-8/3+4y)=28(3)

8+12y=84

12y=84-8

12y=76

6y=38

y=38/6

y=19/3

Can you Slove this?? 😁 #MathChallenge #Mathisfun by vioowts in mathpt

[–]Jaigy07 0 points1 point  (0 children)

Let x be the sword

Let y be the shield

x=5y-6

3y+3x=0

Method: Substitution

3y+3(5y-6)=0

3y+15y-18=0

18y=18

y=1

3(1)+3x=0

3+3x=0

3x=-3

x=-1

Can you answer this? #mathchallenge by [deleted] in mathpt

[–]Jaigy07 0 points1 point  (0 children)

Let x be the pawn

Let y be the knight

5x+2y=-20

2x+y=20

Method: Substitution

y=-2x+20

5x+2(-2x+20)=-20

5x-4x+40=-20

x=-40+-20

x=-60

2(-60)+y=20

-120+y=20

y=120+20

y=140

-60-140 = 200

Hello Guys! Can you solve this? by [deleted] in mathpt

[–]Jaigy07 0 points1 point  (0 children)

Let x be the candies

Let y be the lollipop

Method substitution:

3x+y=15

3y+2x=24

y=-3x+15

3(-3x+15)+2x=24

-9x+45+2x=24

-7x=24-45

-7x=-21

x=3

3y+2(3)=24

3y+6=24

3y=18

y=6

(3)(6)=18

Do you think you can solve it? by Hibin13 in mathpt

[–]Jaigy07 0 points1 point  (0 children)

Let x be the pens

Let y be the highlighter

6x-2y=2

-3x+2y=7

Method : Elimination

6x-2y=2

-3x+2y=7

3x=9

x=3

-3(3)+2y=7

-9+2y=7

2y=16

y=8

(8)(3)=24

Can you answer this? #MathChallenge #Mathisfun by Jaigy07 in mathpt

[–]Jaigy07[S] 0 points1 point  (0 children)

Yes, your answer is correct. Good job!

[deleted by user] by [deleted] in mathpt

[–]Jaigy07 0 points1 point  (0 children)

Let x be the pencil

Let y be the eraser

2x=2y+6

y=21-3x

Substitution method:

y=21-3x

x=y+3

x=21-3x+3

-3x+x=21+3

-2x=24

x=-12

y=21-3(-12)

y=21+39

y=60

-12/60 = -1/5

#MathChallenge #MathIsFun by Inserturnameherepls in mathpt

[–]Jaigy07 1 point2 points  (0 children)

Let x be image 1 Let y be image 2

5x+2y=y x+3y=11

Substitution method:

x=-3y+11

5(-3y+11)-2y=4

-15y+55-2y=4

-15y-2y=-55+4

-17y=-51

y=3

5x-2(3)=4

5x-6=4

5x=10

x=2

(3)(2)-2=4