Question 450815
Let x = Sally's present age
Let y = Adam's present age
:
Write an equation for each statement:
:
"Sally's age six years older than Adam's.
x = y+6
:
"Three Times Adams age plus Sally's age is 22."
3y + x = 22
:
From the 1st statement, replace x with (y+6), find y
3y + (y+6) = 22
3y + y = 22 - 6
4y = 16
y = {{{16/4}}}
y = 4 yrs is Adam's age
then
4 + 6 = 10 yrs is Sally's age
:
:
Check solutions in the statement:
"Three Times Adams age plus Sally's age is 22."
3(4) + 10 = 22
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