Homework Help: algebra

Posted by Anonymous on Wednesday, June 29, 2011 at 6:30pm.

solve system graphically. be sure to check your solution. if a system has infinite number of solutions, use set builder notation to write the solution det. if a system as no solution, state this. a=1+b b=5-2a

algebra - Damon, Wednesday, June 29, 2011 at 6:37pm
b = 5 - 2 (1+b)
b = 5 - 2 - 2 b
3 b = 3
b = 1
a = 1+b = 2

these are straight lines
choose some values for b and find a for each equation then find intersection at a = 2 and b = 1

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