Question 1206198: if twice Mary's age is decreased by 7 is the same age as her age increased by ten
how old is Mary. Found 2 solutions by ankor@dixie-net.com, josgarithmetic:Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! if twice Mary's age is decreased by 7 is the same age as her age increased by ten, how old is Mary.
:
m = Mary's age now
2m - 7 = m + 10
2m - m = 10 + 7
m = 17