SOLUTION: The age of a man is 10 years more than three times his brother's age. Find the age of each if 5 years from now he will be 4 years more than twice his brother's age.

Algebra.Com
Question 550805: The age of a man is 10 years more than three times his brother's age. Find the age of each if 5 years from now he will be 4 years more than twice his brother's age.

Answer by ankor@dixie-net.com(22740)   (Show Source): You can put this solution on YOUR website!
The age of a man is 10 years more than three times his brother's age.
m = 3b + 10
:
Find the age of each if 5 years from now he will be 4 years more than twice his brother's age.
m + 5 = 2(b+5) + 4
m + 5 = 2b + 10 + 4
m = 2b + 14 - 5
m = 2b + 9
Replace m with (3b+10)
3b + 10 = 2b + 9
3b - 2b = 9 - 10
b = -1; obviously this is not a valid problem

RELATED QUESTIONS

The age of a man is 10 years more than three times his brother's age. Find the age of... (answered by ankor@dixie-net.com)
the age of man is 10 years more than three times his brother's age. Find the age if 5... (answered by ptaylor)
The age of Mrs. Flores is 8 years more than three times her daughter's age. Find the age... (answered by ewatrrr)
The age of Nando is 8 years more 3 times his brother's age.find the age of each if 10... (answered by ankor@dixie-net.com,Fombitz)
The age of Mrs. Cruz is 9 years more than three times her son's age. Find the age of each (answered by rothauserc)
Find the angles of a triangle if one angle exceeds a second angle by 45 degrees and is... (answered by mathstutor494)
a boy is 10 years older than his brother. in four years, he will be twice as old as his... (answered by TimothyLamb)
A boy is 10 years older than his brother. In 4 years he will be twice as old as his... (answered by stanbon)
A boy is 10 years older than his brother. In 4 years he will be twice as old as his... (answered by josgarithmetic)