You need to use the inverse operations, which is basically the opposite of the operations you have in this problem.
So, 4 is being added to 3x. So do the inverse, which is subtraction
Subtract 4 from both sides of the equation
10-4=6
3x+4-4=3x (because 3 is being multiplied by something then added to 4. If you subtracted that 4, then 3x isn't going to change and it will remain 3 times x)
So now we have 3x=6
3x = 3 times x because any number written right next to a letter or other number usually means multiplication. The inverse of multiplication is division, so divide 3 from both sides of the equation!
3x divided by 3 is x (3 divided by itself is 1 which is just x)
6 divided by 3 is 2
So x = 2
To test this, insert 2 in as x
3 times 2 = 6. 6 +4 = 10!
So this is correct! x=2
