Answer:
go on tigermath
Step-by-step explanation:
-3 (-5) - 3y = -6
15 - 3y = -6
-3y = -6 + (-15)
-3y = -21
y = -21 / -3
y = 7
The value of y is 7.
9
Let's say Mark is M and his brother is B.
M+5=B
M+B=23
Now we can solve using subsitution.
M+M+5=23
(Subtract 5 from both sides)
2M=18
M=9
Hope this helped!
