On grid paper find (0,3). Draw a dot. Each time you move to the right one step move the line up 7. Some of the numbers in the line would be (1,10) (-1,-4)
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The answer to the math problem -3 7x plus 7 is x equals 1/3.
3+3x+7x=13 3x+7x=10 10x=10 x=1
Subtract by 7x and divide by 2.
7x+7=28x 28x-7x=7 21x=7 x=3
X = -3