Solve 10x + 13 = 193
The solution of 10x + 13 = 193 is x = 18.
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 13 from both sides:
- 3
Divide both sides by 10:
- 4
Check: put x = 18 back into the equation.
LaTeX source of the formulas on this page
\[ 10x + 13 = 193\ \Rightarrow\ x = 18 \]
\[ 10x + 13 = 193 \]
\[ 10x + 13 - 13 = 193 - 13 \ \Rightarrow\ 10x = 180 \]
\[ \frac{10x}{10} = \frac{180}{10} \ \Rightarrow\ x = 18 \]
\[ 10\cdot18 + 13 = 180 + 13 = 193 \checkmark \]Trying values of x in 10x + 13 = 193
| x | 10x + 13 | Equals 193? |
|---|---|---|
| 16 | 173 | no |
| 17 | 183 | no |
| 18 | 193 | yes |
| 19 | 203 | no |
| 20 | 213 | no |
Questions
What is x in 10x + 13 = 193?
The solution of 10x + 13 = 193 is x = 18.
How do you solve 10x + 13 = 193?
Subtract 13 from both sides to get 10x = 180, then divide both sides by 10 to get x = 18.
How do I check the answer?
Replace x by 18: 10(18) + 13 = 193, which is 193.