2.81551 nearest hundredth

Explain step-by-step how to simplify -5(2x – 3y + 6z – 10).

One number is 4 less than 3 times a second number. if 3 more than two times the first number is decreased by 2 times the second number, the result is 11. use the substitution method. what is the first number?

Matt had 5 library books. he checked out 1 additional book every week without retuening any books. whats the matching equation