simplify the expression
5.6n-(4-2.5n)
2x^2-3-(4x^2-6)
x+(2x-2)-(4y+3)
To simplify the given expressions, follow these steps:
1. Simplify the inner parentheses, if any.
2. Combine like terms by collecting similar variables.
3. Perform any necessary operations.
Expression 1: 5.6n - (4 - 2.5n)
Step 1: Simplify the inner parentheses.
5.6n - 4 + 2.5n
Step 2: Combine like terms.
(5.6n + 2.5n) - 4
Step 3: Perform the operation.
8.1n - 4
Expression 2: 2x^2 - 3 - (4x^2 - 6)
Step 1: Simplify the inner parentheses.
2x^2 - 3 - 4x^2 + 6
Step 2: Combine like terms.
(2x^2 - 4x^2) - 3 + 6
Step 3: Perform the operation.
-2x^2 + 3
Expression 3: x + (2x - 2) - (4y + 3)
Step 1: Simplify the inner parentheses.
x + 2x - 2 - 4y - 3
Step 2: Combine like terms.
(1x + 2x) + (-4y) + (-2 - 3)
3x - 4y - 5
Therefore, the simplified expressions are:
1. 8.1n - 4
2. -2x^2 + 3
3. 3x - 4y - 5