Solve the equation.2x - 9x = 24 - 17

A. -1
B. 1
C. -7
D. 7

Answer: A

Mathematics

You might also like to view...

Simplify.

A. 2! 
B.
C. 20 
D.

View
Mathematics

Solve the system using Gaussian elimination. 2x + 5y =  2 5x= -20

A. {(-4, 2)} B. {(-4, -2)} C. ? D. {(2, -4)}

View
Mathematics

Simplify.(9x3 + 2x2) - (8x2 - 6x -1) - (4x3 + x - 3) 

A. 13x3 - 10x2 + 5x - 4  B. 5x3 - 4x2 - 5x + 4 C. 5x3 + 6x2 + 7x - 4 D. 5x3 - 6x2 + 5x + 4

View
Mathematics

Solve the problem.If f(?) = cot ? and f(a) = -3, find the exact value of f(a) + f(a + ?) + f(a + 3?).

A. -9 B. -3 C. -9 + 4? D. undefined

View
Mathematics