Solve the following equation
7-y=4
Solve for y
7 - y = 4
Divide each side by 7
| 7y | |
| 7 |
| = |
| 4 |
| 7 |
Group constants
Group our constants 7 and 4.
subtract 7 from both sides
-y + 7 - 7 = 4 - 7
Cancel 7 on the left side:
-y = -3
Divide each side of the equation by -1
| -1y | |
| -1 |
| = |
| -3 |
| -1 |
y = 3
Final Answer
y = 3
