Solve 6x + 15 = 15
The solution of 6x + 15 = 15 is x = 0.
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 15 from both sides:
- 3
Divide both sides by 6:
- 4
Check: put x = 0 back into the equation.
LaTeX source of the formulas on this page
\[ 6x + 15 = 15\ \Rightarrow\ x = 0 \]
\[ 6x + 15 = 15 \]
\[ 6x + 15 - 15 = 15 - 15 \ \Rightarrow\ 6x = 0 \]
\[ \frac{6x}{6} = \frac{0}{6} \ \Rightarrow\ x = 0 \]
\[ 6\cdot0 + 15 = 0 + 15 = 15 \checkmark \]Trying values of x in 6x + 15 = 15
| x | 6x + 15 | Equals 15? |
|---|---|---|
| -2 | 3 | no |
| -1 | 9 | no |
| 0 | 15 | yes |
| 1 | 21 | no |
| 2 | 27 | no |
Questions
What is x in 6x + 15 = 15?
The solution of 6x + 15 = 15 is x = 0.
How do you solve 6x + 15 = 15?
Subtract 15 from both sides to get 6x = 0, then divide both sides by 6 to get x = 0.
How do I check the answer?
Replace x by 0: 6(0) + 15 = 15, which is 15.