12x = 48 - 6y

10x = 38 - 6y

If the x=5, what is the value of y?

y = - 2

Step-by-step explanation:

Substitute x for 5 in each equation. Then rearrange and isolate y.

12x = 48 - 6y

12 (5) = 48 - 6y Simplify

60 = 48 - 6y

60 - 48 = 48 - 48 - 6y Subtract 48 from both sides

12 = - 6y

12/-6 = - 6y/-6 Divide both sides by - 6

-2 = y Answer

y = - 2 Variable on left side

10x = 38 - 6y

10 (5) = 38 - 6y Simplify

50 = 38 - 6y

50 - 38 = 38 - 38 - 6y Subtract 38 from both sides

12 = - 6y

12/-6 = - 6y/-6 Divide each side by - 6

-2 = y

y = - 2 Same answer.