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Q: 13 equals negative 4x plus 9?

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4x+13 = 21 4x = 21-13 4x = 8 x = 2

4x = -36 x = -9

5x - 4x = 13 - 3 ie x = 10

8x+5=4x+13 4x=8 x=2 Therefore, your answer is 2.

Parallel, the slope of the second equation is 4

Y- intercept of 4x+8y=16

4x + 3 = 16 Therefore, 4x = 13 x = 13/4 Therefore, x = 3.25

X= -8

x= Negative 4

(2, 7)

4x + 7 = 6x -7 14=2x so x = 7 (plus a negative # is simply - that number)

The slope is negative 2/3.

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