Posted by myra on Tuesday, October 6, 2009 at 6:57pm.
Melissa is 31 years younger than her dad. The sum of their ages is 61. How old is Melissa? How old is her dad?

algebra  Ms. Sue, Tuesday, October 6, 2009 at 6:59pm
x + 31 = 62
x = 6231
x = ?

algebra  Ms. Sue, Tuesday, October 6, 2009 at 7:47pm
Oops! I goofed.
Reiny pointed out the correct solution to me.
let Melissa's age be x
Dad's age is x+31
x+ x+31 = 61
2x = 30
x = 15
so Melissa is 15, her dad is 46
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