algebra help: -25=-(4n - 7) i need help with algebra

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-25=-(4n - 7) i need help with algebra

This open post was written 3 months, 1 week ago | V/U/S: 155, 5, 5 | Edit Post | Leave a reply | Report Post

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davistoocut 0 #
An Unknown Location | 3 months, 1 week ago (4 minutes after post)

n=8

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Luck of the Irish 30 #
An Undisclosed Location | 3 months, 1 week ago (9 minutes after post)

-25=-(4n - 7)

Rule of algebra BOMDAS Brackets Of Multiplication Division Addition and Subtraction

-25 = -4n + 7 (like signs = + unlike signs = -)

-25 - 7 = -4n (bring 7 to accross the = sign thus changing sign in front of number)

-32 = -4n (Subtraction)

-32/-4 = n (Division)

=> n = 8 (like above when dividing like signs = +, unlike signs = -

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hello1991 0 #
An Unknown Location | 3 months, 1 week ago (13 minutes after post)

yep i also think n = 8

-25 = - (4n - 7)

So
4n - 7 = 25
4n = 32
n = 32/4
n = 8

hope that helps explain :)

prittygal- #
An Unknown Location | 1 week ago (3 months after post)

whered the 7 come from?

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Luck of the Irish 30 #
An Undisclosed Location | 1 week ago (3 months after post)

prittygal- wrote:
whered the 7 come from?

from the question

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