Solve 8x + 10 = 18
The solution of 8x + 10 = 18 is x = 1.
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 8:
- 4
Check: put x = 1 back into the equation.
LaTeX source of the formulas on this page
\[ 8x + 10 = 18\ \Rightarrow\ x = 1 \]
\[ 8x + 10 = 18 \]
\[ 8x + 10 - 10 = 18 - 10 \ \Rightarrow\ 8x = 8 \]
\[ \frac{8x}{8} = \frac{8}{8} \ \Rightarrow\ x = 1 \]
\[ 8\cdot1 + 10 = 8 + 10 = 18 \checkmark \]Trying values of x in 8x + 10 = 18
| x | 8x + 10 | Equals 18? |
|---|---|---|
| -1 | 2 | no |
| 0 | 10 | no |
| 1 | 18 | yes |
| 2 | 26 | no |
| 3 | 34 | no |
Questions
What is x in 8x + 10 = 18?
The solution of 8x + 10 = 18 is x = 1.
How do you solve 8x + 10 = 18?
Subtract 10 from both sides to get 8x = 8, then divide both sides by 8 to get x = 1.
How do I check the answer?
Replace x by 1: 8(1) + 10 = 18, which is 18.