Mathematics
14 Online
OpenStudy (anonymous):
M
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Vocaloid (vocaloid):
is there a picture that goes with this question?
OpenStudy (anonymous):
Yes
OpenStudy (anonymous):
@Lully1212 what two angles can you add that will equal JKL?
OpenStudy (anonymous):
@billj5 you can add HKL and JKH together but that would equal up to 178
OpenStudy (anonymous):
that is correct, so please set up the equation
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OpenStudy (anonymous):
value of HKL + value of JKH = 172, plug in the values
OpenStudy (anonymous):
153x + 25x = 172
OpenStudy (anonymous):
not quite
OpenStudy (anonymous):
(153 + x) + (25 + x) = 172
153 + x + 25 + x = 172
OpenStudy (anonymous):
does that make sense?
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OpenStudy (anonymous):
So far it does
OpenStudy (anonymous):
ok great please simplify this
153 + x + 25 + x = 172
OpenStudy (anonymous):
153 + x + 25 + x = 172
- 25 - 25
128
i dont think i did that right lol
OpenStudy (anonymous):
just combine like terms, lets rearrange first,
153 + 25 + x + x = 172
OpenStudy (anonymous):
153 + 25 = what?
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OpenStudy (anonymous):
172
OpenStudy (anonymous):
178 + x + x = 172
OpenStudy (anonymous):
x + x = what?
OpenStudy (anonymous):
2x
OpenStudy (anonymous):
perfect so we have 178 + 2x = 172, does this make sense?
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OpenStudy (anonymous):
we were just combining like terms on the left hand side
OpenStudy (anonymous):
Yes
OpenStudy (anonymous):
ok perfect, can you solve this equation
178 + 2x = 172?
OpenStudy (anonymous):
Do i just subtract 172 from 178?
OpenStudy (anonymous):
you can, the first goal is to get the x terms by themselves on one side of the equation, so i would probably subtract 178 from 172
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OpenStudy (anonymous):
So that would equal -6
OpenStudy (anonymous):
correct, so we have 2x = -6
OpenStudy (anonymous):
so what is x equal to?
OpenStudy (anonymous):
x = -3?
OpenStudy (anonymous):
perfect, good work :)
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OpenStudy (anonymous):
Thank you :)
OpenStudy (anonymous):
yw