How do you write 3x+9=7/2y3x+9=72y in standard form?

1 Answer
Jul 24, 2018

6x - 7y = -186x7y=18

Explanation:

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Let's make it in this form.

First, subtract color(blue)(7/2)72 from both sides:
3x -7/2y + 9 = 03x72y+9=0

Subtract color(blue)99 from both sides:
3x - 7/2y = -93x72y=9

In standard form, all the terms also have to be integers (-3, -2, -1, 0, 1, 2, 3...)

So multiply both sides by 2:
2 * (3x - 7/2y) = -9 * 2

6x - 7y = -18

This is now in standard linear form, Ax + By = C.

Hope this helps!