Question

$7x + 5x - 4 = 0$
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Answer 1

Answer:

Step-by-step explanation:

12x = 4

x=4/12

x= 1/3

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Answer 2

Explanation:

7x+5x=12x (left side)

move the -4 to the right side

12/12=1 (left side) I did this to seperate the x from the 12.

-4/12=.33 (right side) I did this because if the /12 on one side, I have to do the same to the other side as well.

Answer:

X=.33

Key:

- means negative

right side means the right side of the equals sign

left side means the left side of the equals sign

/ means divide