3x - 12 = 10x - 15 - 6x -10
3x - 12 = 4x -25
3x + 13 = 4x
13 = 4x - 3x
13 = x
None?
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y = -0.5x plus or minus any number
It is a quadratic equation with one unknown variable, x which has no real roots.
A quadratic equation, if there's an equals stil to come... Otherwise it's just an expression.
Add 5 to both sides of the equation to get rid of the - 5. -3x - 5 + 5 = -20 + 5 Solve and simplify. -3x = -15 Divide both sides of the equation by -3. x = 5