Posted by brandon on .
brenda is twice as old as warren. jim is 10 years older than warren. jim is 25 years old. write an equation using the variable b to represent brenda's age and the variable w to represent warrens age

math 
PsyDAG,
b = 2w
j = w +10
Substitute 25 into second equation to find w, then insert w blue into the first equation.