Quandaries and Queries
How do we solve 2x - 5x + 6.3 = -14.4 Please help on this, math is beyond me and I am trying to help my freshman son.
It sometimes helps to think of an equation as a balance with the balance point at the equal sign. You have a balance with 2x - 5x + 6.3 on the left side and -14.4 on the right. The challenge is to manipulate the equation, maintaining the balance, and end with the variable x alone on the left side and a number on the right, that is
There are four manipulations you can perform that will maintain the balance.
In your equation the first step is to rewrite 2x - 5x as -3x.
I want to have x alone on the left side so subtract 6.3 to each side to get
Finally, to end with x alone on the left, divide both sides by -3 to get