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OpenStudy (anonymous):
PLEASE HELP! Solution of 2 [7x-4] +3=51?
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OpenStudy (karatechopper):
When trying to isolate x, what is the first step possible?
OpenStudy (anonymous):
idk im terrible at this stuff :/
OpenStudy (anonymous):
2(7x-4)+3 = 51 14x - 8 + 3 = 51 14x -5 = 51 14x = 56 x = 4
OpenStudy (tkhunny):
Why did you use [ ] instead of ( )? Were you trying to indicate Absolute Values?
OpenStudy (anonymous):
yes!!!
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OpenStudy (anonymous):
help please?
OpenStudy (anonymous):
2[7x-4] = 48 [7x-4] = 24 7x-4 = -24 OR 7x-4 = 24 7x = -20 OR 7x = 20 x = -20/7 OR 7x = 20/7
OpenStudy (anonymous):
sorry, the second part should be OR 7x = 28 -> x=4
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