Simplify and Solve
n + 8 +2n= -10
What is n= -6?
-226.8 = 21.6y
What is y = -10.5?
6x + 5 = 29
What is x = 4?
One more than three times a number is 7.
What is 3n + 1 = 7?
Barry has 18 more marbles than Heidi. If Barry has 92 marbles, write and solve an equation to determine the number of marbles Heidi has.
What is 74 marbles?
6(a - 4) = 12
What is a = 6?
10 = 1/5x
What is x = 50?
3 - 5y = -37
What is y = 8?
The quotient of a number and 5, less 10, is 3.
What is n/5 - 10 = 3?
Paula has read 70% of the total pages in a book she is reading for English class. Paula has read 84 pages. Define a variable. Then write and solve an equation to determine how many pages are in the book.
What is 0.7p = 84, p = 120 pages?
-3(c + 7) = 15
What is c = -12?
67 = 3/4p +7
What is p = 80?
2/3x - 5 = 7
What is x = 18?
Seven less than one-fourth of a number is -1.
What is 1/4n - 7 = -1?
Cassidy went to the movies with some of her friends. The tickets cost $6.50 each, and they spent $17.50 on snacks. The total amount paid was $63.00. Write an equation and solve to find out how many people went to the movies.
What is 7 people?
w/4 +12 = 20
What is w = 32?
4 1/6 = 3 1/3c
What is c = 1 1/4?
a - 4 / 5 = 12
What is a = 64?
Six less than 7 times a number is equal to -20.
What is 7n - 6 = -20?
The cost of a certain music plan is $99.99 per year plus $0.25 per song you download. If you paid $113.74 one year, write an equation for the following situation.
What is 0.25s + 99.99 = 113.74?
-7(2x - 8) + 3x = 34
What is x = 2?
Sarah solved the equation -7/8x = 24. She got the answer x = 21. Is she correct? If not, what should be the right answer?
What is Sarah is not correct, the answer should be x = -27 3/7?
Determine if the statement is true or false and explain why. An equation with an integer coefficient will always have an integer solution.
What is false?
Write a sentence for the following equation. -2k + 7 = -3.
What is answers will vary?
The ages of three siblings combined is 27. The oldest is twice the age of the youngest. The middle child is 3 years older than the youngest. Write and solve an equation.
What is n + 2n + (n + 3) = 27, 6, 9, and 12?