Answer:20
Step-by-step explanation:
The answer is 7
If you cancel 1 with -1 you will only have 3y=21 and 3 x 7 is 21 so y=7
Answer:
(- 1, 9 )
Step-by-step explanation:
One of the equations gives y = 9, the y- value
To find the value of x, substitute y = - 3x + 6 , that is
- 3x + 6 = 9 ( subtract 6 from both sides )
- 3x = 3 ( divide both sides by - 3 )
x = - 1
Solution is (- 1, 9 )
Answer:
is it proper question I am sorry I canot understand
