CRAZYFINGA
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- Feb 25, 2009
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5X+20=4X=30
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Find the value of X: 5X + 20 = 4X = 30
- Thread starter CRAZYFINGA
- Start date
As the above poster pointed out, you have two equal signs. Did you accidently put in the extra equal sign?
That said, I'll assume you meant to type 5x + 20 = 4x + 30
This problem has two terms with x in it. The general idea with these types of problems is to get all the terms with an x in it over to one side of the equal sign. Like this:
5x + 20 = 4x + 30
5x + 20 - 4x = 30
5x - 4x = 10
x = 10
1)The original equation
2)In this step I minus a 4x from both sides. You can do anything to an equation AS LONG as you do the exact same thing to the other side of the equal sign!
3)Once again, I did something to both sides of the equation. I minused a 20 from both sides. In this step I have isolated the x terms on one side of the equation.
4) 5x - 4x is equal to just one x. Therefore x = 10
Did this help you? If you have any more questions about this just ask!
That said, I'll assume you meant to type 5x + 20 = 4x + 30
This problem has two terms with x in it. The general idea with these types of problems is to get all the terms with an x in it over to one side of the equal sign. Like this:
5x + 20 = 4x + 30
5x + 20 - 4x = 30
5x - 4x = 10
x = 10
1)The original equation
2)In this step I minus a 4x from both sides. You can do anything to an equation AS LONG as you do the exact same thing to the other side of the equal sign!
3)Once again, I did something to both sides of the equation. I minused a 20 from both sides. In this step I have isolated the x terms on one side of the equation.
4) 5x - 4x is equal to just one x. Therefore x = 10
Did this help you? If you have any more questions about this just ask!