If adam is a now, then
a - 1/2 = 12
a = 12 1/2
a + x/2 = 2x
12 1/2 + x/2 = 2x
25 + x = 4x
x = 25/3
check: 25/6 + 25/2 = 25(2/3) = 2 * 25/3
25/2 + 75/3 = 100
if 1/2 years ago adam was 12, and 1/2x years from now he will be 2x years old, how old will he be 3x years from now
2 answers
oops a+3x = 50
1 answer