3 years ago

Simplify 7b-2b+3b+4b

Mathematics

2 answers:

kolezko [41]3 years ago

4 0

It should be just 12b, since they all have the same exponent, they can all be combined.

Schach [20]3 years ago

3 0

The answer is 12b as 7b - 2b equals 5b add 3b add 4b equals 12b as they all have the same denominator I hope that helps you

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Marat540 [252]

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Answer: $\boxed{\bold{x=-7}}$

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Explanation: $\downarrow\downarrow\downarrow$

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[ Step One ] Subtract 12 From Both Sides

$\bold{11x+12-12=8x-9-12}$

[ Step Two ] Simplify

$\bold{11x=8x-21}$

[ Step Three ] Subtract 8x From Both Sides

$\bold{11x-8x=8x-21-8x}$

[ Step Four ] Simplify

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[ Step Five ] Divide Both Sides By 3

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[ Step Six ] Simplify

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