Question

bantu jawabin yah soalnya ​

Answer 1

Jawab:

4. 3c = 4b

b = 21

3c = 4(21) = 84

c = 84 ÷ 3 = 28

5. x + 1 = 2

6z + y = 10

-2y = x + 3

x = 2 - 1 = 1

-2y = 1 +3 = 4

y = -2

6z + y = 10

6z + (-2) = 10

6z = 10 + 2 = 12

z = 12 ÷ 6 = 2

Answer 2

Jawab:

Penjelasan dengan langkah-langkah:

4)

b=21

3c=4b

3c=4.21

3c=84/3

maka c=28

5)

x+1=2

x=2-1

x=1

-2y=x+3

-2y=1+3

-2y=4

y=4/-2

y=-2

6z+y=10

6z-2=10

6z=10+2

6z=12

z=2

maka x = 1 , y = -2 , z = 2