SOLUTION: a + b = 10 3a + 2b = 40 To solve the above system of equations using the substitution method you could substitute which of the following into the second equation? b=10

Algebra ->  Expressions-with-variables -> SOLUTION: a + b = 10 3a + 2b = 40 To solve the above system of equations using the substitution method you could substitute which of the following into the second equation? b=10      Log On


   

Question 258842: a + b = 10
3a + 2b = 40
To solve the above system of equations using the substitution method you could substitute which of the following into the second equation?
b=10+a
a = 10 + b
a = 10 - b
2b = 10 - a
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Use eq. 1,
a%2Bb=10
a=10-b
Substitute that into the second eq. for a and solve for b.
a=10-b