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Earn +20 ptsQ: What does x equal when 3x plus -1 equals 8?
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How do you do y equals 2x plus 3 and y equals 3x plus 1?
Both equations are equal and so: 3x+1 = 2x+3 3x-2x = 3-1 x = 2 and by substituting y = 7
What does (3x plus or minus 1 )2 equal Does It equal (3x plus 1)(3x-1)?
I think you mean (3x ± 1)^2 = (3x+1)(3x-1)?
What is 3x plus 7x plus 5 equals?
10x + 5 which is also equal to 5(2x + 1)
3x plus 2y equals 4 -3x plus 4y equals -10?
(2, -1)
Is y equals 3x plus 1 and y equals 3x - 7 perpendicular?
No. they are parallel, since the slopes are both equal in this case 3. To be perpendicular the product of the slopes of both lines is equal to -1 (i.e., m1*m2 = -1).
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