SOLUTION: a + 9b=4 a + 4b= -1

Question 713752: a + 9b=4
a + 4b= -1
Found 2 solutions by checkley79, Alan3354:
Answer by checkley79(3341) (Show Source): You can put this solution on YOUR website!
a + 9b=4
a + 4b= -1 SUBTRACT.
-----------------------------
5b=5
b=5/5
b=1 ans.
a+9*1=4
a+9=4
a=4-9
a=-5 ans.
proof"
-5+4*1=-1
-5+4=-1
-1=-1
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
duplicate

RELATED QUESTIONS
a+9b=19... (answered by mananth)
a + 9b=4 a + 4b= -1 solve by the elimination... (answered by Alan3354,checkley79)
3a+4b=11... (answered by josgarithmetic)
a=1/2b+4... (answered by Fombitz)
4b-1=-4+4b+3 (answered by rapaljer)
a^3/4b^2 ________... (answered by MathLover1)
simplify... (answered by Nate)
9(4b-1)=2(9b+3) (answered by sarahschober)