OKAYYYY 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:)
