Solve 11x ā 8 = ā118
The solution of 11x ā 8 = ā118 is x = -10.
How to work it out
- 1
The goal is to get x alone. Undo the operations in the opposite order: first the subtraction, then the multiplication.
- 2
Add 8 to both sides:
- 3
Divide both sides by 11:
- 4
Check: put x = -10 back into the equation.
LaTeX source of the formulas on this page
\[ 11x - 8 = -118\ \Rightarrow\ x = -10 \]
\[ 11x - 8 = -118 \]
\[ 11x - 8 + 8 = -118 + 8 \ \Rightarrow\ 11x = -110 \]
\[ \frac{11x}{11} = \frac{-110}{11} \ \Rightarrow\ x = -10 \]
\[ 11\cdot(-10) - 8 = -110 - 8 = -118 \checkmark \]Trying values of x in 11x ā 8 = ā118
| x | 11x ā 8 | Equals -118? |
|---|---|---|
| -12 | -140 | no |
| -11 | -129 | no |
| -10 | -118 | yes |
| -9 | -107 | no |
| -8 | -96 | no |
Questions
What is x in 11x ā 8 = ā118?
The solution of 11x ā 8 = ā118 is x = -10.
How do you solve 11x ā 8 = ā118?
Add 8 to both sides to get 11x = -110, then divide both sides by 11 to get x = -10.
How do I check the answer?
Replace x by -10: 11(-10) ā 8 = -118, which is -118.