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Q: -3x - 8 plus 6x equals 7?

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3x + 7 = 6x - 2 Rearranging gives 6x - 3x = 7 + 2 3x = 9 x = 3

6x+4=3x+12 => 6x-3x=12-4 => 3x=8 => x=8/3=2.666...

6x-7 = 3x+5 6x = 3x+12 (subtracting -7) 3x=12 (subtracting 3x) x=4 (dividing by 3)

xx+3x+7=6x+18 xx+3x+7-(6x+18)=6x+18-(6x+18) xx-3x-11=0 Factors of -11: 1,-11 -1,11 Doesn't factor evenly, use quadratic

x^2 + 3x + 7 = 6x + 18 x^2 - 3x - 11 = 0

The value of x is -3

3x + 7 = -3x 6x = -7 x = -7/6

9x-19=6x+2 so 3x=21 and x=7

3x - 6 = -3x + 36Add 3x to each side:6x - 6 = 36Add 6 to each side:6x = 42Divide each side by 6:x = 7

3x + 8

x = 3/5 and y = 1/5

Subtract 3x from each side: 7 = 3x - 2Add 2 to each side: 9 = 3xDivide each side by 3: x = 3

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