Best Answer

3x + 7 = -4x + 28 implies 7x + 7 = 28

Q: What mistake was made in this equation 3x plus 7 equals -4x plus 28 -x plus 7 equals 28 -x equals 21 x equals -21?

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A mistake

A quadratic equation.

It would have been much qiucker to use your calculator. I can tell you that the answer is 310 but how do you know that I have not made a mistake?

That's the equation.

That word "equals" in there makes it an equation.

Related questions

This equation is referred to the type of math known as Quadratics, and is used to find the probela ( probela is a high curve ark , a type of shape) PLEASE SEE, don't look up Quadratics on answers.com, made mistake on equation to find probela.

A mistake

A quadratic equation.

It would have been much qiucker to use your calculator. I can tell you that the answer is 310 but how do you know that I have not made a mistake?

That's the equation.

x = 0 and y = 4

The summary equation is the formula equation. Sugar equals alcohol plus carbon dioxide. The formula is C6H12O6 which equals 2 CH3CH2OH plus 2 CO2.

That equation is impossible to solve because Sin-1(3) is an impossible proportion in a triangle. Earlier in the problem you might have made a mistake. Or, if that is the whole problem you cannot deduce an answer because there is no value of X, Real or imaginary that works in that equation.

That word "equals" in there makes it an equation.

A linear equation.

It is an equation of a straight line.

There is no solution since the equation is inconsistent.