Solve 8x + 2 = 146
The solution of 8x + 2 = 146 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 2 from both sides:
- 3
Divide both sides by 8:
- 4
Check: put x = 18 back into the equation.
LaTeX source of the formulas on this page
\[ 8x + 2 = 146\ \Rightarrow\ x = 18 \]
\[ 8x + 2 = 146 \]
\[ 8x + 2 - 2 = 146 - 2 \ \Rightarrow\ 8x = 144 \]
\[ \frac{8x}{8} = \frac{144}{8} \ \Rightarrow\ x = 18 \]
\[ 8\cdot18 + 2 = 144 + 2 = 146 \checkmark \]Trying values of x in 8x + 2 = 146
| x | 8x + 2 | Equals 146? |
|---|---|---|
| 16 | 130 | no |
| 17 | 138 | no |
| 18 | 146 | yes |
| 19 | 154 | no |
| 20 | 162 | no |
Questions
What is x in 8x + 2 = 146?
The solution of 8x + 2 = 146 is x = 18.
How do you solve 8x + 2 = 146?
Subtract 2 from both sides to get 8x = 144, then divide both sides by 8 to get x = 18.
How do I check the answer?
Replace x by 18: 8(18) + 2 = 146, which is 146.