Solve the following equation
a+20=3a
Solve for a
a + 20 = 3a
Group variables
Group our variables a and 3a
subtract 3a from both sides
a + 20 - 3a = 3a - 3a
Cancel 3a on the right side:
-2a + 20 = 0
Group constants
Group our constants 20 and 0.
subtract 20 from both sides
-2a + 20 - 20 = 0 - 20
Cancel 20 on the left side:
-2a = -20
Divide each side of the equation by -2
| -2a | |
| -2 |
| = |
| -20 |
| -2 |
a = 10
Final Answer
a = 10
