subtract 2a +b= -7 and 3a+b=-10
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have your answer a= -3
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vatsayanvandana:
thanks bro
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2a +b = -7
3a +b = -10
_________
-1a = -3
by elimination method
a= -3
3a +b = -10
_________
-1a = -3
by elimination method
a= -3
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