Ah, what a lovely little math problem we have here. When you have 6x minus 6x, you see that the two terms are the same but with opposite signs. So when you subtract them, they cancel each other out, leaving you with 0. It's like two little friends giving each other a hug and disappearing into thin air. Just a happy little zero left behind.
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When you have an expression like 6x - 6x, you can simplify it by combining like terms. In this case, the two terms are identical, so when you subtract one from the other, you are left with 0. Therefore, the result of 6x - 6x is 0.
6x
x^2 + 6x + 9 cannot be simplified further. If x^2 + 6x + 9 = 0 then we can solve for x. x^2 + 6x + 9 can be broken into a binomial: (x+3)(x+3), which then gives us x = -3.
you multiply it
6x-4 = 18 6x = 18+4 6x = 22 x = 22/6 = 3 and 2/3
If 6x + 10 = 11x , then x=2.