Answer:
Step-by-step explanation:
M = 2J
M = H + 7
M + J + H = 53
Then combine first two equations and solve in terms of J:
2J = H + 7 --> H = 2J - 7
Substitute for H & M in last equation:
2J + J + 2J - 7 = 53
5J - 7 = 53
5J = 60
J = 12
Then plug J into other equations:
M = 24
J =12
H = 17
X = (1/2)y + 6
x + y = 21
Substitute (1/2)y + 6 as x into the equation x + y = 21 since x = (1/2)y + 6.
[(1/2)y + 6] + y = 21
0.5y + 6 + y = 21
1.5y = 15
y = 10
Same thing, now substitute 10 as y in the other equation.
x + y = 21
x + (10) = 21
x = 11
Answer:
y=8x
Step-by-step explanation:
x=1 y= 8
x=2 y=16
8=m+b
16=2m+b
m=8
y=8x
1. Joe- 2+b (or 2+1b)
Micheal- 2b
2. Joe- 2+10=12
Micheal- 2x10=20
3. one distributes and the other just adds regularly.
