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2 years ago

-28 = -7(3x +4) + 21x

Mathematics

2 answers:

frutty [35]2 years ago

4 0

I think its 1

Step-by-step explanation:

if it ain't my bad

ira [324]2 years ago

4 0

1. -28 = -7(3x + 4) + 21x
= -28 = -7 * 3x + -7 * 4 + 21x
= -28 = -21x - 28 + 21x
= -28 = -28 (ps. The reason that we took away both of the 21x’s is because when you have a positive and negative of the same exact number, then that becomes 0 so right now, we are just left with -28 = -28
2. -28 = -28
So, this is our final answer, glad I could help!

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