How many leaves on a tree diagram are needed to represent all possible combinations tossing a coin 3 times

For the equations below which statement is true ? -2x=14 6x=-42

Yuto and hila attempted to solve the same inequality. their work is shown below. which statement is true about the work shown above? yuto is correct because he isolated the variable correctly and reversed the inequality symbol. yuto is incorrect because he should not have reversed the inequality symbol. hila is correct because she isolated the variable correctly and reversed the inequality symbol. hila is incorrect because she should not have reversed the inequality symbol.

The product of 3 and a number increased by 8 is 31 written as an equation