x=10
For the equation -9 - 6x +7x = 1
First, add nine to both sides to get all of the x's on one side
-9 - 6x + 7x = 1
+9 +9
-6x +7x = 10
Then, combine like terms on the left side
-6x+7x=10
x=10
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X=4.2666666666667
Double first equation: 10x + 2y = 10Subtract second equation: 7x = 7x = 1, y = 0
7x = -3y + 12
It is an equation and the value of x is 8
Why not? The statement is trivially true, meaning it holds for all values of x.