Hi there!
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I believe your answer is:
[see below]
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Here’s why:
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[tex]12x + 4(x-1)=60\\\\\rightarrow 12x + 4x - 4 = 60 \\\\\rightarrow 16x - 4 = 60\\\\\rightarrow 16x = 64\\\\\rightarrow \frac{16x=64}{16}\\\\\rightarrow \boxed{x = 4}[/tex]
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- Given.
- Distributive property - 4 is distributive into the parentheses.
- Simplify - 12x and 4x are combined.
- Addition property of equality - "-4" is added to both sides.
- Division property - "16" is divided on both sides to get 'x = 4'.
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Hope this helps you. I apologize if it’s incorrect.
