SOLUTION: please help me solve this equation: {{{3a+2b=48}}} {{{a/2+b/2=7}}}

SOLUTION: please help me solve this equation: {{{3a+2b=48}}} {{{a/2+b/2=7}}}

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Question 146101: please help me solve this equation:

Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
3a+2b=48
(a+b)/2=7
a+b=14
a=14-b
3(14-b)+2b=48
42-3b+2b=48
-b=48-42
-b=6
b=-6 answer.
3a+2*-6=48
3a-12=48
3a=48+12
3a=60
a=60/3
a=20 answer.
(20-6)/2=7
14/2=7
7=7

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