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OpenStudy (anonymous):
Solve for x. 3x - 1 = 20 -7 -19/3 19/3 7
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OpenStudy (mew55):
add one to both sides 3x-1+1=20+1 3x=21 divide both sides by 3 3x/3=21/3 x=7
OpenStudy (anonymous):
thank you @mew55
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