6x+3=4x+11

6x+3=4x+11                      ---Subtract 4x from both sides to "clear" 4x from the right side

-4x     -4x

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2x + 3 = 0 + 11

2x + 3 = 11                           ---Subtract 3 from both sides to "clear" 3 from the left side

     - 3      -3

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2x = 8                               ---Finally, divide both sides by 2

2 ÷ 2x = 8 ÷ 2

2 ÷ 2x = 4

x = 4