Solve 6x + 11 = 65
The solution of 6x + 11 = 65 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 6:
- 4
Check: put x = 9 back into the equation.
LaTeX source of the formulas on this page
\[ 6x + 11 = 65\ \Rightarrow\ x = 9 \]
\[ 6x + 11 = 65 \]
\[ 6x + 11 - 11 = 65 - 11 \ \Rightarrow\ 6x = 54 \]
\[ \frac{6x}{6} = \frac{54}{6} \ \Rightarrow\ x = 9 \]
\[ 6\cdot9 + 11 = 54 + 11 = 65 \checkmark \]Trying values of x in 6x + 11 = 65
| x | 6x + 11 | Equals 65? |
|---|---|---|
| 7 | 53 | no |
| 8 | 59 | no |
| 9 | 65 | yes |
| 10 | 71 | no |
| 11 | 77 | no |
Questions
What is x in 6x + 11 = 65?
The solution of 6x + 11 = 65 is x = 9.
How do you solve 6x + 11 = 65?
Subtract 11 from both sides to get 6x = 54, then divide both sides by 6 to get x = 9.
How do I check the answer?
Replace x by 9: 6(9) + 11 = 65, which is 65.