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Mathematics 14 Online
OpenStudy (anonymous):

M

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

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?

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?

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?

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

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 :)

OpenStudy (anonymous):

Thank you :)

OpenStudy (anonymous):

yw

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