SOLUTION: I am trying to solve this equation: 3(4x+5)-2(x-7)=9 I came up with an answer: x=5/7 Is this the right answer? If not can you help me find the right answer?

Algebra ->  Linear-equations -> SOLUTION: I am trying to solve this equation: 3(4x+5)-2(x-7)=9 I came up with an answer: x=5/7 Is this the right answer? If not can you help me find the right answer?      Log On


   



Question 967432: I am trying to solve this equation:
3(4x+5)-2(x-7)=9
I came up with an answer: x=5/7
Is this the right answer? If not can you help me find the right answer?

Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
"Is this the right answer?"

Test the result in the equation and find if the value makes the equation true.

Steps from the beginning:
12x%2B15-2x%2B14=9
10x%2B29=9
10x=9-29
cross%2810x=-10%29
10x=-20
x=cross%28-1%29=-2

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!
I am trying to solve this equation:
3(4x+5)-2(x-7)=9
I came up with an answer: x=5/7
Is this the right answer? If not can you help me find the right answer?
No, it's not!
The correct answer is: highlight_green%28x+=+-+2%29.
You just need to do a check to determine if your answer is correct.
I think you need to rework the problem to try to arrive at the correct answer. It'd help a great deal if you'd reveal
how you're doing the problem, so someone can tell you where you're going wrong. I don't believe there is any better
way to learn.