Answer:
A
= 
b =
× 
b = 
then b =
that is ORANGE
B
-2 - v = -7
v = -7 +2
then v = k + m that is BROWN
C
= 
q = 
then q =
that is YELLOW
D
4m + 2(n) = 5 (n)
4m = 5 (n) - 2n
4m = 3n
m = 
then m =
that is RED
E
-8 =
- 6
= -8 + 6
x = -5 (-8 + 6)
then x = y( w + z ) that is LIGHT GREEN
Y=10x
hope this helped, have a good day
4c + 5h = 650 and
5c + 6h = 800 where c are chefs, h are helpers
Start by finding an expression for c
4c + 5h = 650
4c = 650 -5h
c = (650- 5h)/4
Then substitute that into the second equation and solve for a number value for h
5 (650-5h)/4 + 6h = 800
(3250-25h)/4 + 6h = 800
Multiply both sides by 4
3250-25h + 24h = 3200
-h = -50
h = 50
Take that 50 and substitute it into the expression we have for c to get a number value for c
C= 650-5(50)/4
C = 650-250/4
C = 400/4
C= 100
Check your first equations, substituting $50 for the helpers and $100 for the chefs.
4 (100) + 5(50) =
400 + 250 = 650
5(100) + 6(50) =
500 + 300 = 800