Question

8th Grade Math! Help Please.

Answer 1

2. 11=3z+5
-5
6=3z
Divide by 3
2=z. Z=2

3. 2s-4=6
+4
2s=10
/2
S=5

4. 5r+8=-12
-8
5r=-20
/5
R=-4

5. -6p-3=9
+3
-6p=12
/-6
P=-2

6. 3x+x-2=-14
C.L.T(combine like terms) 3x and x
4x-2=-14
+2
4x=-12
/4
X=-3

7. 5c+2-3c=10
C.L.T 5c+3c=2c
2c+2=10
-2
2c=8
/2
C=4

8. 3+7n+2n=21
C.L.T 7n+2n=9n
3+9n=21
-3
9n=18
/9
N=2

9. 6r+5-7r=21
C.L.T 6r-7r=-1r
-1r+5=21
-5
-1r=16
/-1
R=-16

10. 8-5b=-7
-8
-5b=-15
/-5
B=3

11. 6-4m=-10
-6
-4m=-16
/-4
M=4

12. -3t+4=19
-4
-3t=15
/-3
T=-5

13. 2+ a\b=5
And sorry I’m not good with fractions don’t want to give the wrong answer

Answer 2

bolded

Explanation:

2. 11= 3z +5

6 = 3z z= 2

3. 2s - 4 = 6

2s=10 s= 5

4. 5r + 8 = -12

5r = -20 r= -4

5. -6p - 3 = 9

-6p = 12 p= -2

6. 3x + x -2 = -14

4x = -12 x= -3

7. 5c + 2 -3c = 10

2c = 8 c=4

8. 3 + 7n +2n = 21

9n = 18 n=2

9. 6r + 5 - 7r =21

-1r =16 r= -16

10. 8 - 5b= -7

-5b = -15 b= 3

11. 6 - 4m= -10

-4m = -4 m= 1

12. -3t + 4 =19

-3t = 15 t= -5

13. a= 18