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OpenStudy (anonymous):
solve the following equation for x: -3(6x+5)=21
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OpenStudy (solomonzelman):
\[-3(6x+5)=21\]\[-18x-15=21\][-18x-15=21\]\[~~~~~~~~~+15~~~+15\]\[-18x=36\]\[x=?\]
OpenStudy (anonymous):
x=-3*6x=-18x+-3*5=-15 so now you have... -18x+-15=21 x=21-(-15)or 21+15=36 x=36/-18 x=2 because -18*2=36
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