Jacob collects hats. He has 6 hats already and he collects 2 hats a week

It’s been 3 weeks.

Step-by-step explanation:

6/2=3

OKA I WILL TRY MY BEST TO SHOW MY WORK :)

1. 2s=6 divide by 2 on both sides so s=3

plug s=3 to -4r-3s+t=19 so

-4r-3(3)+t=19

-4r-9+t=19

-4r+t=28 use this equation to use elimination with the other equation 2r-4t=-28

multiply 2r-4t=-28 by 2 so we can can eliminate 4r

4r+8t=-56

-4r+t=28

equal to -7t=-28 divide by -7 so t=4

plug that into -4r-9+t=19

-4r-9+4=19

-4r-5=19

-4r=24

divide by 4 on both sides r=-6

3. 6c=-18 so c=-3

a-2b-(-3)=7

a-2b=4

4(a-2b=4)

4A-8B=16

-4A-4B=-28

-12B=12 SO B=-1

A-2(-1)=4

A+2=4

A=-2

2. x=5

y=-2(5)+z+6

y=-4+z

6x+6y+z=27

6(5)+6(-4+z)+z=27

30-24+6z+z=27

6+7Z=27

7z=21 divide 7 on both sides so z=3

4. 6b+c=-29

c=-6b-29

c=-59

a+b-(-6b-29)=0

a+b+6b+29=0

a+7b+29=0

a+7b=-29

a=-29-7b

a=-29-7(5)

a=-64

2(-29-7b)+4b+5(-6b-29)=-3

-58-14b+4b-30b-145=-3

-40b-203=-3

-40b=200

b=-5

6. Y=10.2

Z=7.2

X=-1.2

5,7, AND 8 IDK HOW TO DO THIS (WELL LIKE I'M FIGURING IT OUT)

I HOPE THIS HELPS YOU OUT AND I'M SO SO SORRY IF IT TOOK THIS LONG BUT THIS THING WAS HECKA LOGNG ANYWAYS. I HAVE TO GO DO SOMETHING AND THEN I WILL ANSWER 5,7 AND 8 I'M SO SORRY. I BEST GET A FREGGIN BRAINLIEST FOR THIS SMH JUST KIDDING I'M GLAD I CAN HELP:)