Solve 5x + 11 = 36
The solution of 5x + 11 = 36 is x = 5.
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 5:
- 4
Check: put x = 5 back into the equation.
LaTeX source of the formulas on this page
\[ 5x + 11 = 36\ \Rightarrow\ x = 5 \]
\[ 5x + 11 = 36 \]
\[ 5x + 11 - 11 = 36 - 11 \ \Rightarrow\ 5x = 25 \]
\[ \frac{5x}{5} = \frac{25}{5} \ \Rightarrow\ x = 5 \]
\[ 5\cdot5 + 11 = 25 + 11 = 36 \checkmark \]Trying values of x in 5x + 11 = 36
| x | 5x + 11 | Equals 36? |
|---|---|---|
| 3 | 26 | no |
| 4 | 31 | no |
| 5 | 36 | yes |
| 6 | 41 | no |
| 7 | 46 | no |
Questions
What is x in 5x + 11 = 36?
The solution of 5x + 11 = 36 is x = 5.
How do you solve 5x + 11 = 36?
Subtract 11 from both sides to get 5x = 25, then divide both sides by 5 to get x = 5.
How do I check the answer?
Replace x by 5: 5(5) + 11 = 36, which is 36.