Answer:
2.1
Step-by-step explanation:
Simplifying
3.4 + -2.8d + 2.8d + -1.3 = 0
Reorder the terms:
3.4 + -1.3 + -2.8d + 2.8d = 0
Combine like terms: 3.4 + -1.3 = 2.1
2.1 + -2.8d + 2.8d = 0
Combine like terms: -2.8d + 2.8d = 0.0
2.1 + 0.0 = 0
2.1 = 0
Solving
2.1 = 0
Couldn't find a variable to solve for.
This equation is invalid, the left and right sides are not equal, therefore there is no solution.
