Answer
Success!
c=12
↓Steps Explained:↓
Solve for c
750 - 25c + 20c = 690
Group the c terms on the left:
(-25 + 20)c = -5c
Form modified equation
-5c + 750 = + 690
Divide each side by 750
| 750c | |
| 750 |
| = |
| -25 |
| 750 |
Group constants
Group our constants 750 and 690.
subtract 750 from both sides
-5c + 750 - 750 = 690 - 750
Cancel 750 on the left side:
-5c = -60
Divide each side of the equation by -5
| -5c | |
| -5 |
| = |
| -60 |
| -5 |
c = 12
Final Answer
c=12Take the Quiz Switch to Chat Mode
Related Calculators: Literal Equations | Simultaneous Equations | 4 unknowns using Cramers Rule