Question 67650This question is from textbook Prentice Hall Mathmatics
: What is the value of x? 3x-14+2x+9=90
This question is from textbook Prentice Hall Mathmatics
Answer by brandonpark2889(31)   (Show Source):
You can put this solution on YOUR website! What is the value of x? 3x-14+2x+9=90
This goes back to Algebra problem. First, arrange the equation from
3x-14+2x+9=90 to...
3x+2x-14+9=90.
Combine the like terms.
3x+2x=5x.
-14+9=-5.
So it ends up like this: 5x-5=90. Add 5 on each side, so it would be come
5x=95. Remember that u always do the opposite of what it is doing: as it is
subtraction, u make it addition. If you want to ask why, don't ask me :D.
5x=95. Now DIVIDE 5 on each side. In the end, you will end up with x=19.
So, x=19.
Now... to check: 3(19)-14+2(19)+9=90. Multiplication first. 19x3=57. 19x2=38.
So it ends up with: 57-14+38+9=90. Add em' all up. 57-14=43+38=81+9=90.
90=90. So answer is x=19. Still confused? Well... you shouldn't be.
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I like math, period.
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