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OpenStudy (anonymous):
Help please! Solve 2a − 5d = 30 for d. Show your work.
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OpenStudy (anonymous):
@peachpi
OpenStudy (anonymous):
You have to move the 2a to the other side. It's added to -5d, so what operation do you have to use?
OpenStudy (anonymous):
subtraction?
OpenStudy (anonymous):
right. so what do will you have after subtracting 2a from both sides of the equation?
OpenStudy (anonymous):
do i subtract 2a from 5d or 30?
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OpenStudy (anonymous):
From the 30. It helps to line up like terms so you can see what cancel. |dw:1443035502144:dw|
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