Solve 12x + 14 = 98
The solution of 12x + 14 = 98 is x = 7.
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 14 from both sides:
- 3
Divide both sides by 12:
- 4
Check: put x = 7 back into the equation.
LaTeX source of the formulas on this page
\[ 12x + 14 = 98\ \Rightarrow\ x = 7 \]
\[ 12x + 14 = 98 \]
\[ 12x + 14 - 14 = 98 - 14 \ \Rightarrow\ 12x = 84 \]
\[ \frac{12x}{12} = \frac{84}{12} \ \Rightarrow\ x = 7 \]
\[ 12\cdot7 + 14 = 84 + 14 = 98 \checkmark \]Trying values of x in 12x + 14 = 98
| x | 12x + 14 | Equals 98? |
|---|---|---|
| 5 | 74 | no |
| 6 | 86 | no |
| 7 | 98 | yes |
| 8 | 110 | no |
| 9 | 122 | no |
Questions
What is x in 12x + 14 = 98?
The solution of 12x + 14 = 98 is x = 7.
How do you solve 12x + 14 = 98?
Subtract 14 from both sides to get 12x = 84, then divide both sides by 12 to get x = 7.
How do I check the answer?
Replace x by 7: 12(7) + 14 = 98, which is 98.