6. TBQ - Identify and correcting mistakes

Observe each of them and identify if there is a mistake. If you think there is a mistake, try to explain what might have gone wrong. Then, correct it and give the value of the expression.

 

1. If \(f = 4\), \(g = 2\), then \(2f – 2g = 2\). The correct expression is

 

2. If \(t = 4\), \(b = 1\), then \(3t + b = 13\). The correct expression is