6c^2+2.5d-d+2c^2-3d
Combining like terms, the expression becomes:
(6c^2 + 2c^2) + (2.5d - d - 3d)
Adding the c^2 terms:
8c^2 + (2.5d - d - 3d)
Simplifying the d terms:
8c^2 - 4.5d
So the simplified expression is 8c^2 - 4.5d.
To simplify the expression 6c^2 + 2.5d - d + 2c^2 - 3d, we can combine like terms.
First, let's combine the terms with the same variables:
6c^2 + 2c^2 = 8c^2
Next, let's combine the terms with "d":
2.5d - d - 3d = -0.5d - 3d = -3.5d
Putting it all together, the simplified expression is:
8c^2 - 3.5d