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anonymous
 one year ago
What is the value of x? x/5 + 6 =36 x=?
anonymous
 one year ago
What is the value of x? x/5 + 6 =36 x=?

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mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Is this the equation? \(\dfrac{x}{5} + 6 = 36\)

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1We need to isolate x, In order to do that, we need to undo the operations being done to x. x is being divided by 5. Then a 6 is being added. We start by undoing the addition of 6. Since we need to do the same to both sides of an equation, we subtract 6 from both sides.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1dw:1443651036765:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Good. What is 36  6 ?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Good. Since there is no operation yet being done to x/5, we just copy it down. We get: dw:1443651137106:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1We now have \(\dfrac{x}{5} = 30\) x is being divided by 5. We need x by itself, so we do the opposite of dividing by 5. The opposite operation to division is multiplication. We need to multiply x/5 by 5 to end up with just x. The rule is that we need to do the operation to both sides of the equation, so we multiply both sides of the equation by 5.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1dw:1443651276216:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1What is 30 * 5 ?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Yes. Since 5/5 = 1, we end up with just x on the left side, so we have our solution: dw:1443651347959:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so 150 is the answer

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Yes. Now we can check. If we plug in 150 into x in the original equation, we must come up with a true statement. Let's check.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1dw:1443651437740:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Thank You so much! could you help me with 3 more?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Since replacing x with 150 makes the equation true, 150 is the correct solution to the equation.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1You're welcome. I'll help, but pls start a new post.
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