Solve 12x + 11 = 119
The solution of 12x + 11 = 119 is x = 9.
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 11 from both sides:
- 3
Divide both sides by 12:
- 4
Check: put x = 9 back into the equation.
LaTeX source of the formulas on this page
\[ 12x + 11 = 119\ \Rightarrow\ x = 9 \]
\[ 12x + 11 = 119 \]
\[ 12x + 11 - 11 = 119 - 11 \ \Rightarrow\ 12x = 108 \]
\[ \frac{12x}{12} = \frac{108}{12} \ \Rightarrow\ x = 9 \]
\[ 12\cdot9 + 11 = 108 + 11 = 119 \checkmark \]Trying values of x in 12x + 11 = 119
| x | 12x + 11 | Equals 119? |
|---|---|---|
| 7 | 95 | no |
| 8 | 107 | no |
| 9 | 119 | yes |
| 10 | 131 | no |
| 11 | 143 | no |
Questions
What is x in 12x + 11 = 119?
The solution of 12x + 11 = 119 is x = 9.
How do you solve 12x + 11 = 119?
Subtract 11 from both sides to get 12x = 108, then divide both sides by 12 to get x = 9.
How do I check the answer?
Replace x by 9: 12(9) + 11 = 119, which is 119.