SOLUTION: please help me....... if a+b=11 and a-b=7,then ab=

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Question 924876: please help me.......
if a+b=11 and a-b=7,then ab=
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
a+b=11 and
a-b=7
2a = 18
a = +highlight_green%289%29 and b = +highlight_green%282%29 a+%2B+b+=+11,b+=+11-9
And...checking
a-b=7
9 - 2 = 7
......
ab = 9•2 = 18
ab = 18
...
Typical in SAT or ACT testing... to follow the solving process with giving an answer
as a sum 0r product of Solutions Found