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To do this equation, you collect like terms. 7x-4x+x-15 is your original equation, you have 3 terms with "'x'" in them, and they are 7x, -4x, and x. 7x + (-4x) +x simplifies to 4x, because 7-4 = 3 + 1 = 4 (the x is really 1x....). After this, you get 4x-15, which is as simplified as this equation can be.
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Earn +20 ptsQ: What is 7x - 4x plus x - 15?
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4x2 plus 7x - 15?
(4x - 5)(x + 3) so x = 1.25 or -3
7x-5 plus 2x equals 3-4x plus 12?
7x-5+2x=3-4x+12 7x+2x-5=3+12-4x 9x-5=15-4x 9x+4x-5=15-4x+4x 13x-5=15 13x-5+5=15+5 13x=20 13x/13=20/13 x=20/13
-3x plus 4x equals 7x?
No, that's not correct.-3x + 4x = x
What is the factoring for 7x plus 4 x?
Very little factoring. 7X + 4X X(7 + 4) ======
X plus 7x plus 3y - y?
x+7x+3y-y =8x+2y =2(4x+y)
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