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Q: What is 9x-15 and 7x plus 5?

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-7x + 5 = -9 -7x = -14 7x = 14 x = 2

2x^2+7x+5=(2x+5)(x+1)

7x = 5+5x 7x-5x = 5 2x = 5 x = 2.5

7x+20-15=7x+5

23 = 7x + 7x - 5 = 14x - 5 14x = 23 + 5 = 28 x = 28/14 = 2

6x2 + 7x - 5 = (3x + 5)(2x - 1)

The correct answer is one of: A: (7x + 5)*(7x + 6) = 49x2 + 77x + 30 B: (7x + 5)*7x + 6 = 49x2 + 35x + 6 C: 7x + 5*7x + 6 = 42x + 6 Since there are no brackets in the question, the correct answer is C but I suspect there should be brackets but this site does not allow them.

-8 + 7(6x) + 3 = -7x - 5 - 1-8 + 42x + 3 = -7x - 5 - 142x - 8 + 3 = -7x - 5 + (-1)42x - 5 = - 7x - 642x + 7x - 5 + 5 = - 7x + 7x - 6 + 549x = -149x/49 = -1/49x = -1/49

7x + 5 + 3x is [ 10x + 5 ].That's the same thing as [ 2 times (5x + 1) ] .

4x+5=7x-8 the ansewr is 3.25

7x+5-14 = 28 7x = 28+14-5 7x = 37 x = 37/7 = 5.'285714' recurring

7x - 9 = 3x + 5 7x - 3x - 9 = 5 7x - 3x = 5 + 9 4x = 14 x = 14/4

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