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Which expression is equivalent to (-4-x)-(3y-9x)
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Which expression is equivalent to (-4-x)-(3y-9x)

User Dlebech
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2 Answers

2 votes
Basically, you just need to simplify it first, then combine like terms.
(-4-x)-(3y-9x)
= -4 - x - (3y - 9x)
= -4 - x + -1(3y) + -1 (-9x)
= -4 + -x + -1(3y) + -1(-9x)
= -4 + -x + -3y + 9x
= (-x + -9x) + (-3y) + (-4)
= 8x + (-3y) + (-4)
= 8x - 3y - 4


User Raphink
by
7.4k points
4 votes
(-4-x)-(3y-9x)
= -4 - x - 3y + 9x
= 8x - 3y - 4
User Sushma
by
6.0k points
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