Question 1162062
<br>
x = Sonia's weight
4x = Amelia's weight  (4 times as heavy as Sonia)
4x+23 = John's weight  (23kg more than Amelia)<br>
The sum of their weights is 122 kg:<br>
{{{x+4x+4x+23 = 122}}}<br>
Solve using basic algebra....<br>