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Earn +20 ptsQ: 12x-28 equals -63 plus 7x
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2x plus 24 equals 9x-39?
2x + 24 = 9x - 39= 2x + 63 = 9x= 63 = 7x= x = 9
-46 equals 3x plus 7x?
-46 = 3x + 7x
What is the orderedpair for 9x-3y equals 63 and 7x-3y equals 45?
9x-3y=63 7x-3y=45 -3y=63-9x -y=21-3x y=-21+3x 7x-3(-21+3x)=45 7x+63+9x=45 7x+9x=45-63 16x=-18 x=-1.125 y=-21+3(-1.125) y=-24.375 (-1.125,-24.375)
2x plus 7x equals?
It is 9x
2x plus 4x plus 7x equals?
13x
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