Question

a+b+c=109
b=a×2+14
c=b:2
a,b,c=?

Answer 1

$a + b + c = 109$

$b = a \times 2 + 14$

$b = 2a + 14$

$c = b \div 2$

$c = (2a + 14) \div 2$

$c = a + 7$

$a + 2a + 14 + a + 7 = 109$

$a + 2a + a = 109 - 14 - 7$

$4a = 88$

$a = 88 \div 4$

$a = 22$

$b = 2a + 14$

$b = 2 \times 22 + 14$

$b = 44 + 14$

$b = 58$

$c = a + 7$

$c = 22 + 7$

$c = 29$