Use the distributive property to simplify the expression.
–7(8x – 3) + x
a.
x + 10
b.
–15x + 4
c.
–9x – 4
d.
–55x + 21

To solve this, multiply -7 by everything in the parenthesis

after this you get -56x+21+x

Now combine like terms if needed (in this case it is)

After doing this you get -55x+21

The answer is D.

c. side angle side. u shares the same sides

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