... which is 2x + 2 = x so x = -2
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4[x+3]=4x+12 4x+12=4x+12 it's open.
7C MINUS bracket open c plus 2 bracket close equals 7c minus c minus 2 equals 6c minus 2
A quadratic equation.
That's the equation.
That word "equals" in there makes it an equation.