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OpenStudy (vshiroky):
Solve the equation
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OpenStudy (vshiroky):
5x-4(4x+4)=50
OpenStudy (anonymous):
distribute first
OpenStudy (vshiroky):
Does she do the 4 multiplied by 4x+4 first?
OpenStudy (vshiroky):
so 5x-20x-16=50
OpenStudy (anonymous):
yes, except it is not \(4\) it is \(-4\)
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OpenStudy (anonymous):
yes that is correct
OpenStudy (anonymous):
well not quite
OpenStudy (anonymous):
\[-4\times 4x=-16x\] not \(-20x\)
OpenStudy (anonymous):
\[5x-16x-16=50 \]
OpenStudy (anonymous):
next step is combine like terms on the left
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OpenStudy (vshiroky):
5x-16x-16=50 5x-16x=66 -11x=66 x=-6
OpenStudy (anonymous):
looks good to me
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