Question

[68-(197-216)] - [(-43)+168-(216)]

Answer 1

\(\left[68-\left(197-216\right)\right]-\left[\left(-43\right)+168-216\right]\\ =\left[68-\left(-19\right)\right]-\left[\left(-43\right)-48\right]\\ =87+91\\ =178\)

Answer 2

[68−(197−216)]−[(−43)+168−216]=[68−(−19)]−[(−43)−48]=87+91=178