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Mary's sister is seven years older than Mary.
Their combined ages add up to 35 how old is Mary?



Sorry problem by writing in solving an equation!!

Please help!!!!

Respuesta :

35-7 which would equal 28, but that answer wouldn't be exactly correct, as this isn't in correct formation. An equation would be 2x + 7 = 35.

35-7= 28 divided by 2(2x) would equal 14
So Mary is 14 and her sister is 21.


21 + 14 equals 35