Solve 6x + 8 = 56
The solution of 6x + 8 = 56 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 8 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
\[ 6x + 8 = 56\ \Rightarrow\ x = 8 \]
\[ 6x + 8 = 56 \]
\[ 6x + 8 - 8 = 56 - 8 \ \Rightarrow\ 6x = 48 \]
\[ \frac{6x}{6} = \frac{48}{6} \ \Rightarrow\ x = 8 \]
\[ 6\cdot8 + 8 = 48 + 8 = 56 \checkmark \]Trying values of x in 6x + 8 = 56
| x | 6x + 8 | Equals 56? |
|---|---|---|
| 6 | 44 | no |
| 7 | 50 | no |
| 8 | 56 | yes |
| 9 | 62 | no |
| 10 | 68 | no |
Questions
What is x in 6x + 8 = 56?
The solution of 6x + 8 = 56 is x = 8.
How do you solve 6x + 8 = 56?
Subtract 8 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) + 8 = 56, which is 56.