Bisi and fibie age add up to 29. Seven years ago Bisi was twice as old as fibie. Find their present ages
2 answers
Pls help
b + f = 29
b - 7 = 2(f - 7) ... b = 2 f - 7
substituting ... 2 f - 7 + f = 29
solve for f , then substitute back to find b
b - 7 = 2(f - 7) ... b = 2 f - 7
substituting ... 2 f - 7 + f = 29
solve for f , then substitute back to find b
2 answers