Solve 6x + 6 = 54
The solution of 6x + 6 = 54 is x = 8.
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 6 from both sides:
- 3
Divide both sides by 6:
- 4
Check: put x = 8 back into the equation.
LaTeX source of the formulas on this page
\[ 6x + 6 = 54\ \Rightarrow\ x = 8 \]
\[ 6x + 6 = 54 \]
\[ 6x + 6 - 6 = 54 - 6 \ \Rightarrow\ 6x = 48 \]
\[ \frac{6x}{6} = \frac{48}{6} \ \Rightarrow\ x = 8 \]
\[ 6\cdot8 + 6 = 48 + 6 = 54 \checkmark \]Trying values of x in 6x + 6 = 54
| x | 6x + 6 | Equals 54? |
|---|---|---|
| 6 | 42 | no |
| 7 | 48 | no |
| 8 | 54 | yes |
| 9 | 60 | no |
| 10 | 66 | no |
Questions
What is x in 6x + 6 = 54?
The solution of 6x + 6 = 54 is x = 8.
How do you solve 6x + 6 = 54?
Subtract 6 from both sides to get 6x = 48, then divide both sides by 6 to get x = 8.
How do I check the answer?
Replace x by 8: 6(8) + 6 = 54, which is 54.