Which expressions are equivalent to 6+(-x)+2x+(-7)+2x?
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Can someone explain the elimination method to me for this problem?
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Solve this system of equations. 12x − 18y = 27 4x − 6y = 10
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Evaluate the expression for the given value of the variable. | ? 4 b ? 8 | + ? ? ? 1 ? b 2 ? ? + 2 b 3 -4b-8+-1-b2+2b3 ; b = ? 2 b=-2
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