Question

For which equation is x = 9 a solution?
A. 3x – 7 = –34
B. x – 9 = 1
C. x/9-8=9
D. 4x + 5 = 41

Answer 1

It is D.

Answer 2

4x=41-5

Answer 3

4x=36

Answer 4

Multiply 9 by 4, and add 5, you get 41.

Answer 5

x=9

Answer 6

For which equation is x = 9 a solution?
A. \(3x – 7 = –34 \)
B. \(x – 9 = 1 \)
C. \(\frac{x}{9}-8=9 \)
D. \(4x + 5 = 41\)

A. \(20 \neq -34\) False
B. \(0 \neq 1\) False
C. \(-7 \neq 9\) False
D. \(41 = 41\) True

How to:
In an equation; say:
\[4x + 5 = 41\]
Input 9 for where you see \(x\).
\[4(9)+5=41\]
\[4(9) = 36\]
\[36+5 = 41\]
\[41 = 41\]
Does forty one equal forty one? Yes, it does so it is true.