Answer:
-4.2x - 4 = -4.2x - 4.0.
Explanation:
The expression 4x - 12 + 8 - 8.2x can be simplified by combining like terms and applying the order of operations.
First, we need to use the order of operations to evaluate the expression. This means that we need to perform any operations within parentheses first, followed by exponentiation, then multiplication and division (from left to right), and finally addition and subtraction (from left to right).
Since there are no parentheses in the expression, we can start by simplifying the terms containing x. We have 4x - 8.2x, which can be simplified to 4x - 8.2x = -4.2x.
Next, we can simplify the remaining terms by performing the addition and subtraction in the expression. This gives us -4.2x + 8 - 12, which can be simplified to -4.2x + 8 - 12 = -4.2x - 4.
Therefore, the simplified form of the expression 4x - 12 + 8 - 8.2x is -4.2x - 4. This expression can be further simplified by combining the constant terms on the right side of the equation, which gives us -4.2x - 4 = -4.2x - 4.0.