Question

Geometry Support 4. Given: 6x-4 = 3x + 8. Prove: x = 4​

Answer 1

(Answer in Image)

Explanation:

6x-4=3x+8

6x-4-3x=3x+8-3x subtract -3x on both sides

3x-4=8

3x-4+4=8+4 add four on both sides

3x=12 simplify

3/3x=12/3 divide both sides by 3

x=4

Answer 2

6(4)-4=3(4)+8

24-4=12+8

20=20

Explanation:

To prove x=4, substitute four into the equation

6(4)-4=3(4)+8

24-4=12+8

20=20

Therefore x=4 is proved