x = -8 already is a solution. If an equation has been changed until the value of x is found, and this value is accurate to the original equation, then the equation has been solved.
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12x = 36
x=4 or x=-4
y=(-1) x=(2)
there are two method which you can you use to show this. first X+14=22 by putting 8 in place of X if LHS =RHS, then it is the solution of the euation 8+14 = 22 22=22 hence LHS =RHS
What is the solution set of 2x2 + x = 15