SOLUTION: substitute, x=2y+8 7x+y=101

Question 179020: substitute,
x=2y+8
7x+y=101
Found 2 solutions by vleith, checkley75:
Answer by vleith(2983) (Show Source): You can put this solution on YOUR website!
Given and
Use the value of x in the first equation and substitute it into the second equation

Now take that value for y and substitute it into the first equation to solve for x

Check your answer using equation 2
Does ???
?
yes it does
so x = 14 and y = 3
Answer by checkley75(3666) (Show Source): You can put this solution on YOUR website!
x=2y+8
7x+y=101
7(2y+8)+y=101
14y+56+y=101
15y=101-56
15y=45
y=45/15
y=3 ans.
x=2*3+8
x=6+8
x=14 ans.
Proof:
7*14+3=101
98+3=101
101=101

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