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Q: -3x plus 6 equals -30

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3x + 6 = 30 Therefore, 3x = 24 x = 24/3 x = 8

y = 3x 3x + 4y = 30 3x + 4(3x) = 30 3x + 12x = 30 15x = 30 x = 2 y = 3x y = 3(2) y = 6 (2, 6)

3x + 2 = 3x + 6 This is not possible.

2x + 3x + 6 = 5x + 6

Subtract: 3x - 3x - 4y - 2y = 30 - 6 ie -6y = 24 so y = -4 and x = 14/3

7x+6 = -3x-24 7x+3x = -24-6 10x = -30 x = -3

3x+y=6

what is a slope

-9

x=6

5x - 4 = 3x + 6 5x - 3x = 6 + 4 2x = 10 x = 5

x = 6 and y = -2

y = 3x + 6slope = 3

X equals 9.

6-3x+12=0 6+12-3x=0 18-3x=0 18=3x x=6

-2

x = 2

x=5

x=-5

x = 5

3x - 3 = 2x + 6 3x = 2x + 9 x = 9

3x + 16 = 22 3x = 6 x = 6/3 x = 2

-3x + 6 + 15x =11x + 8 ie -3x + 15x - 11x = 8 - 6 ie x = 2

It is a singular matrix.

4x+6-7x+9=18-3x+15=18-3x=3x=-1