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Gala2k [10]
4 years ago
7

What is the answer for 7x-(7+3x)

Mathematics
1 answer:
Papessa [141]4 years ago
7 0

Answer:

4x - 7

Step-by-step explanation:

We can simplify this expression by subtracting the binomial (a bracket with two terms) and collecting like terms (numbers with the same variable).

When subtracting a binomial, are actually multiplying each term in the binomial by negative one.

7x -(7 + 3x)

= 7x -1(7 + 3x)       Distribute -1 to each of the numbers

= 7x + (7*(-1) + 3x*(-1))     Multiply

= 7x + (-7 - 3x)       Get rid of the brackets.

= 7x - 7 - 3x          Combine like terms

= 4x - 7               Simplified expression

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