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Fantom [35]
3 years ago
6

0.1(x+80)+0.2x=14 The answer key says its 20 but I'm not getting 20.

Mathematics
1 answer:
Zarrin [17]3 years ago
5 0

Answer:

x=20

Explanation to Answer:

Use distributive property for the first step. Meaning you multiply the 0.1 by the x and 80. You will now get 0.1x+8+0.2x=14.

For the second step, collect like-terms. Add the 0.2x to the 0.1x and you should 0.3x+8=14.

For the third step, move the constant to the right. Subtract the 8 by itself and it will cancel out. Subtract the 14 by 8 and you will get 6. Your new equation should be 0.3x=6.

Divide both sides by 0.3. Just like in the third step with 8, 0.3 will cancel itself. When divide 6 by 0.3, you will get your answer, x=20.

You're welcome, and I hope this helps!

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