To simplify the expression \((7x - 2) - (0.04x - 3 + 0.2x)\), we can follow these steps:
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Combine terms in the parentheses: \[ 0.04x - 3 + 0.2x = (0.04x + 0.2x) - 3 = 0.24x - 3 \]
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Now substitute back into the expression: \[ (7x - 2) - (0.24x - 3) \]
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Distribute the negative sign: \[ 7x - 2 - 0.24x + 3 \]
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Combine like terms: \[ (7x - 0.24x) + (-2 + 3) = 6.76x + 1 \]
Thus, the simplified expression is \(6.76x + 1\).
Now we'll identify which responses match this equivalent expression:
- \( (7x - 2) - (0.24x - 3) \): This matches the expression in a slightly rewritten form.
- \( 7.16x - 5 \): Not equivalent.
- \( 6.76x + 1 \): This is the same as our simplified version, thus equivalent.
- \( 5.76x \): Not equivalent.
- \( 7.76x \): Not equivalent.
In conclusion, the equivalent expressions are:
- \( (7x - 2) - (0.24x - 3) \)
- \( 6.76x + 1 \)
Responses:
- (7x - 2) − (0.24x - 3)
- 6.76x + 1