Solve 12x + 10 = 250
The solution of 12x + 10 = 250 is x = 20.
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 10 from both sides:
- 3
Divide both sides by 12:
- 4
Check: put x = 20 back into the equation.
LaTeX source of the formulas on this page
\[ 12x + 10 = 250\ \Rightarrow\ x = 20 \]
\[ 12x + 10 = 250 \]
\[ 12x + 10 - 10 = 250 - 10 \ \Rightarrow\ 12x = 240 \]
\[ \frac{12x}{12} = \frac{240}{12} \ \Rightarrow\ x = 20 \]
\[ 12\cdot20 + 10 = 240 + 10 = 250 \checkmark \]Trying values of x in 12x + 10 = 250
| x | 12x + 10 | Equals 250? |
|---|---|---|
| 18 | 226 | no |
| 19 | 238 | no |
| 20 | 250 | yes |
| 21 | 262 | no |
| 22 | 274 | no |
Questions
What is x in 12x + 10 = 250?
The solution of 12x + 10 = 250 is x = 20.
How do you solve 12x + 10 = 250?
Subtract 10 from both sides to get 12x = 240, then divide both sides by 12 to get x = 20.
How do I check the answer?
Replace x by 20: 12(20) + 10 = 250, which is 250.