Solve 11x + 9 = 185
The solution of 11x + 9 = 185 is x = 16.
How to work it out
- 1
The goal is to get x alone. Undo the operations in the opposite order: first the addition, then the multiplication.
- 2
Subtract 9 from both sides:
- 3
Divide both sides by 11:
- 4
Check: put x = 16 back into the equation.
LaTeX source of the formulas on this page
\[ 11x + 9 = 185\ \Rightarrow\ x = 16 \]
\[ 11x + 9 = 185 \]
\[ 11x + 9 - 9 = 185 - 9 \ \Rightarrow\ 11x = 176 \]
\[ \frac{11x}{11} = \frac{176}{11} \ \Rightarrow\ x = 16 \]
\[ 11\cdot16 + 9 = 176 + 9 = 185 \checkmark \]Trying values of x in 11x + 9 = 185
| x | 11x + 9 | Equals 185? |
|---|---|---|
| 14 | 163 | no |
| 15 | 174 | no |
| 16 | 185 | yes |
| 17 | 196 | no |
| 18 | 207 | no |
Questions
What is x in 11x + 9 = 185?
The solution of 11x + 9 = 185 is x = 16.
How do you solve 11x + 9 = 185?
Subtract 9 from both sides to get 11x = 176, then divide both sides by 11 to get x = 16.
How do I check the answer?
Replace x by 16: 11(16) + 9 = 185, which is 185.