Question 1145752
<br>
Sydney = x
Macy = x+2  [2 years older than Sydney]
Ally = (1/2)x-1  [1 year less than half Sydney's age]<br>
Write and solve the equation that says the sum of their ages is 31:<br>
{{{(x)+(x+2)+((1/2)x-1) = 31}}}<br>
Solve using basic algebra.