If: 3x+6 = 18
Then: x = 4
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3x+4 = 5x-6 3x-5x = -6-4 -2x = -10 x = 5
3x - 2y = 12 2y + 12 = 3x 2y = 3x - 12 y = 3x/2 - 6 Gradient = 3/2 Y-intercept = -6
your equation is y=3x + 4 here are five parallel equations... y=3x + 5 y=3x + 6 y=3x + 7 y=3x + 8 y=3x + 9
3x - 6y = 9Subtract 3x from each side:-6y = -3x + 9Multiply each side by -1 :6y = 3x - 9Divide each side by 6:y = 0.5x - 1.5
y = mx + b is standard form where m = slope and b = y intercept 6x - 2y = 18 -2y = -6x + 18 -y = -3x + 9 y = 3x -9 m = slope = +3