How can I use substituition to show that 9 + 6 (10-7x) is equivalent to 69-42x

Business women Maya spends 1/4 hours a day on her cell phone. Her husband Larry spends 3/16 hours a day on his cellphone. What is the total time spent on the phone between the couple per day?

7,14/5, 8/25 find the 7th term

The box plot show student grades on the most recent exam compared to overall grades in the class

How do I solve this 8 (c-9) = 6 (2c-12) - 4c

The measures of two complementary angles are in the ratio 4:1. what is the measure of the smaller angle?

Rachel earned $34 dollar sign, 34 in 4 hours at her job today. She wants to know how much she could earn (e) left parenthesis, e, right parenthesis tomorrow if she works 10 hours at the same hourly rate

Five times a number is the same as 30 more than 8 times the number. Find the number. If n is "the number," which equation could be used to solve for the number? 5 n = 8 n + 30 3 n = 30 5 n + 8 n = 30

Andrew can paint the neighbor's house 2 times as fast as Bailey. The year Andrew and Bailey worked together, it took them 9 days. How long would it take each to paint the house?

Evaluate the expression for x = 3, y=13, and z = 5. 12x-3y4x-z Enter your answer in the box.

In 14 days, Lin's sister will be paid $430 and will deposit it into her checking account. If there are no other transactions besides this deposit and the daily fee, will Lin continue to be charged $5.95 each day after this deposit is made?