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OpenStudy (anonymous):
2x-3(x+4)=-5
Simplify.
OpenStudy (solomonzelman):
x=-7
OpenStudy (solomonzelman):
this is not simplifying though, it is solving.
OpenStudy (anonymous):
Can you explain your answer. I got 17. And Yes, it is solving.
OpenStudy (solomonzelman):
2x-3(x+4)=-5
2x-3x-12=-5 (-3 times +4= -12)
-x=7....
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OpenStudy (solomonzelman):
Get it?
OpenStudy (anonymous):
write a two column proof
Given 7y=8y-14 ; y=6
Prove x=7
OpenStudy (solomonzelman):
Geometry?
OpenStudy (anonymous):
yes
OpenStudy (solomonzelman):
where is the x?
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OpenStudy (anonymous):
sorry its 8x not 8y
OpenStudy (solomonzelman):
7y=8x-14
OpenStudy (anonymous):
yes
OpenStudy (solomonzelman):
Statement Reason
7y=8x-14 Given
y=6 Given
7(6)=8x-14 Substitution
42=8x-14 Multiplication
42-8x=-14 Subtraction
-8x=-14-42 Addition
-8x=-56 Subtraction
x=7 Division
OpenStudy (solomonzelman):
-8x=-14-42 Addition not addition, Subtraction
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OpenStudy (solomonzelman):
OK?
OpenStudy (anonymous):
thank you very much would you have time for one more BD bisects <ABC, m<ABD=8x m<ABC=2x+22 find m<DBC
OpenStudy (solomonzelman):
what shape, rectangle?
I have to go, studying "Torah" (Jewish version of Bible).
Sorry!
OpenStudy (anonymous):
ok thank you fro your help
OpenStudy (solomonzelman):
I messaged you
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OpenStudy (anonymous):
it doesn't give a shape just tht problem
OpenStudy (solomonzelman):
Can you please read my message?
OpenStudy (anonymous):
where do I click to give you a medal never done this before
OpenStudy (solomonzelman):
next to my answer, "best response"
OpenStudy (solomonzelman):
Thank You!
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OpenStudy (anonymous):
there ya go and thank you
OpenStudy (solomonzelman):
Bye! Buy! By! Bi!
OpenStudy (anonymous):
derivative of f(x)=(2e^x+2sin(x))(-2x+cos(x))
OpenStudy (anonymous):
Simplify the given expression to rational exponent form, justify each step by identifying the properties of rational exponents used. All work must be shown