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3 years ago

What does the equation 7(3x - 4) equal?

Mathematics

2 answers:

Elanso [62]3 years ago

6 0

This will equal 21x - 28

Mars2501 [29]3 years ago

3 0

Answer:

21x-28

Step-by-step explanation:

7 times 3x is 21x

7 times -4 is -28

hence 21x-28

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4 years ago

Read 2 more answers

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Lapatulllka [165]

Answer:

$\frac{3n^2-7n+15}{(n+3)(n-4)}$ will be the answer.

Step-by-step explanation:

The given expression is,

$\frac{3n}{(n+3)}+\frac{5}{(n-4)}$

By solving this expression,

$\frac{3n}{(n+3)}+\frac{5}{(n-4)}$

= $\frac{3n(n-4)}{(n+3)(n-4)}+\frac{5(n+3)}{(n+3)(n-4)}$

= $\frac{3n(n-4)+5(n+3)}{(n+3)(n-4)}$

= $\frac{3n^2-12n+5n+15}{(n+3)(n-4)}$

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Therefore, fraction given in option (2) will be the answer.

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3 years ago