Question

4 4b + 6C = - 8 6b + 30 = 0 con el metodo sustitución porfa ​

Answer 1

4b+6=-8

(4b+6c)=-8+(-4b)

4b+6c-4b-8-4b

c=2c-b-2/3

6b+3c=0

(6b+3c)=-6b

6b+3c-6b--6b

c=-20b