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Earn +20 ptsQ: 3x plus 4x equals 84 7x equals 84?
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What is 3x - 2x - 4x plus 7x?
4x
3x-7 plus 4x equals 28?
3x - 7 + 4x = 28 7x - 7 = 28 I added 4x and 3x to get 7x 7x = 35 I subtracted 7 from both sides x = 5 I divided by 7 on both sides
Solve by substitution method y equals -4x - 7 y equals 3x?
y= -4x-7 y=3x 3x= -4x-7 3x+4x=7 7x=7 x=1
What is 7x-4x?
11
What is -4x-3x?
-1
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