0143623
22.09.2020 •
Mathematics
Simplify the following algebraic expressions: (a) a×a×a (b) 7b+5b−3a (c) 6m−2+3m (d) 8y÷4 (e) 6a+2b−3a+6
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Ответ:
Open the parentheses.
3x + 5 + 2x - 9 - 4x - 3
Combine like terms.
3x + 2x - 4x + 5 - 9 - 3
Sometimes it helps to think of them separately:
3x + 2x - 4x = x (because 3+2-4=1)
5 - 9 - 3 = -7
So the final thing is
X - 7