Answer:
1= 12
Step-by-step explanation:
Simplifying
l + (-3) = 9
l + -3 = 9
Reorder the terms:
-3 + l = 9
Solve
-3 + l = 9
Solve for variable 'l'.
Move all terms containing l to the left, all other terms to the right.
Add '3' to each side of the equation.
-3 + 3 + l = 9 + 3
Combine like terms: -3 + 3 = 0
0 + l = 9 + 3
l = 9 + 3
Combine like terms: 9 + 3 = 12
l = 12
Simplifying
l = 12
