Which of the following equations is not equivalent to 7x = 21?

A. 2x = 6

B. 5x = 2

C. 2.2x = 6.6

D. 2x + 8 = 14

What is the degree of each monomial? 5x^7

How do you write the number another way 200+30+7

Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. Find the function rule. [x| - 2| - 1| 0| 1| 2] [y| 9| 4| - 1| - 6| - 11]

The front of an A-frame house is in the shape of a triangle. The height of the house is 20 feet. The area of the front of the A-frame is 600 square feet. Write and solve an equation to find the base of the A-frame house.

What is 4 1/4 * 4/34 =

What is the value of 3 x squared minus 5 x y + 5 y squared for x = negative 6 and y = 2?

When a number x is multiplied by 9, the result is 35. What is the value of x?

9e + 4 = - 5e + 14 + 13e solve for e

How many terms are in the algebraic expression 3x - 9xy + 10=

Which equation can be solved by using this system of equations? {y=3x^5-5x^3+2x^2-10x+4 {y=4x^4+6x^3-11 The answer choices are: A.) 3x^5-5x^3+2x^2-10x+4=0 B.) 3x^5-5x^3+2x^2-10x+4=4x^4+6x^3-11 C.) 3x^5+4x^4+x^3+2x^2-10x-7=0 D.) 4x^4+6x^3-11=0